A joint is a region where two bones or a bone and a cartilage meet. The humerus is the bone of the upper arm that runs from the shoulder to the elbow. The humerus connects with the scapula to form the shoulder joint. Rotation is the movement of the bone around an axis. Internal rotation occurs when the shoulder revolves towards the midline and external rotation occurs when the movement occurs away from the midline.

Question

Want to see more full solutions like this?

Answer 1

Question

Chapter 9, Problem 1TYR

Summary Introduction

Introduction:

A joint is a region where two bones or a bone and a cartilage meet. The humerus is the bone of the upper arm that runs from the shoulder to the elbow. The humerus connects with the scapula to form the shoulder joint. Rotation is the movement of the bone around an axis. Internal rotation occurs when the shoulder revolves towards the midline and external rotation occurs when the movement occurs away from the midline.

Expert Solution & Answer

Answer to Problem 1TYR

Correct answer:

The internal and external rotation of the humerus occurs because it is a ball-and-socket joint. Therefore, option c is correct.

Explanation of Solution

Justify reasons for the correct statement:

The ball and socket joint is a multiaxial synovial joint that allows movements such as flexion, extension, external and internal rotation in multiple axes.

Option (c) is given as, “ball-and-socket joint”.

The shoulder bone, the humerus is an example for ball and socket joint. The ball and socket joint occurs when the humerus head, which is ball shaped, fits into the socket of another bone, the scapula. It is a highly mobile joint that is involved in both internal and external rotational movements.

Hence, option (c) is correct.

Justify reasons for the incorrect statements:

Option (a) is given as, “pivot”.

Pivot joint is a freely movable synovial joint. It is a uniaxial joint that allows rotational movement only in a single axis. So, it is a wrong answer.

Option (b) is given as, “condylar”.

A condyloid joint is a biaxial joint that allows movement, such as flexion, adduction, and extension in two axes. It does not allow rotational movement. Therefore, it is a wrong answer.

Option (d) is given as, “saddle”.

The saddle joint occurs in the bones that are saddle shaped. It is a synovial joint that allows movements such as flexion, abduction, and circumduction but no rotation. Hence, it is a wrong answer.

Option (e) is given as, “hinge”.

Hinge joint is a type of synovial joint. It allows movements such as flexion and extension in a single axis. So, it is a wrong answer.

Hence, options (a), (b), (d), and (e) are incorrect.

Conclusion

The humerus produces both internal and external rotation because it is a ball-and-socket joint.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Students have asked these similar questions

Which of the following is NOT an example of passive immunization? A. Administration of tetanus toxoid B. Administration of hepatitis B immunoglobulin C. Administration of rabies immunoglobulin D. Transfer of antibodies via plasma therapy

Transcription and Translation 1. What is the main function of transcription and translation? (2 marks) 2. How is transcription different in eukaryotic and prokaryotic cells? (2 marks) 3. Explain the difference between pre-mRNA and post-transcript mRNA. (2 marks) 4. What is the function of the following: (4 marks) i. the cap ii. spliceosome iii. Poly A tail iv. termination sequence 5. What are advantages to the wobble feature of the genetic code? (2 marks) 6. Explain the difference between the: (3 marks) i. A site & P site ii. codon & anticodon iii. gene expression and gene regulation 7. Explain how the stop codon allows for termination. (1 mark) 8. In your own words, summarize the process of translation. (2 marks)

In this activity you will research performance enhancers that affect the endocrine system or nervous system. You will submit a 1 page paper on one performance enhancer of your choice. Be sure to include: the specific reason for use the alleged results on improving performance how it works how it affect homeostasis and improves performance any side-effects of this substance

Answer 2

Question

Chapter 9, Problem 1TYR

Summary Introduction

Introduction:

A joint is a region where two bones or a bone and a cartilage meet. The humerus is the bone of the upper arm that runs from the shoulder to the elbow. The humerus connects with the scapula to form the shoulder joint. Rotation is the movement of the bone around an axis. Internal rotation occurs when the shoulder revolves towards the midline and external rotation occurs when the movement occurs away from the midline.

Expert Solution & Answer

Answer to Problem 1TYR

Correct answer:

The internal and external rotation of the humerus occurs because it is a ball-and-socket joint. Therefore, option c is correct.

Explanation of Solution

Justify reasons for the correct statement:

The ball and socket joint is a multiaxial synovial joint that allows movements such as flexion, extension, external and internal rotation in multiple axes.

Option (c) is given as, “ball-and-socket joint”.

The shoulder bone, the humerus is an example for ball and socket joint. The ball and socket joint occurs when the humerus head, which is ball shaped, fits into the socket of another bone, the scapula. It is a highly mobile joint that is involved in both internal and external rotational movements.

Hence, option (c) is correct.

Justify reasons for the incorrect statements:

Option (a) is given as, “pivot”.

Pivot joint is a freely movable synovial joint. It is a uniaxial joint that allows rotational movement only in a single axis. So, it is a wrong answer.

Option (b) is given as, “condylar”.

A condyloid joint is a biaxial joint that allows movement, such as flexion, adduction, and extension in two axes. It does not allow rotational movement. Therefore, it is a wrong answer.

Option (d) is given as, “saddle”.

The saddle joint occurs in the bones that are saddle shaped. It is a synovial joint that allows movements such as flexion, abduction, and circumduction but no rotation. Hence, it is a wrong answer.

Option (e) is given as, “hinge”.

Hinge joint is a type of synovial joint. It allows movements such as flexion and extension in a single axis. So, it is a wrong answer.

Hence, options (a), (b), (d), and (e) are incorrect.

Conclusion

The humerus produces both internal and external rotation because it is a ball-and-socket joint.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 3

Question

Chapter 9, Problem 1TYR

Summary Introduction

Introduction:

A joint is a region where two bones or a bone and a cartilage meet. The humerus is the bone of the upper arm that runs from the shoulder to the elbow. The humerus connects with the scapula to form the shoulder joint. Rotation is the movement of the bone around an axis. Internal rotation occurs when the shoulder revolves towards the midline and external rotation occurs when the movement occurs away from the midline.

Expert Solution & Answer

Answer to Problem 1TYR

Correct answer:

The internal and external rotation of the humerus occurs because it is a ball-and-socket joint. Therefore, option c is correct.

Explanation of Solution

Justify reasons for the correct statement:

The ball and socket joint is a multiaxial synovial joint that allows movements such as flexion, extension, external and internal rotation in multiple axes.

Option (c) is given as, “ball-and-socket joint”.

The shoulder bone, the humerus is an example for ball and socket joint. The ball and socket joint occurs when the humerus head, which is ball shaped, fits into the socket of another bone, the scapula. It is a highly mobile joint that is involved in both internal and external rotational movements.

Hence, option (c) is correct.

Justify reasons for the incorrect statements:

Option (a) is given as, “pivot”.

Pivot joint is a freely movable synovial joint. It is a uniaxial joint that allows rotational movement only in a single axis. So, it is a wrong answer.

Option (b) is given as, “condylar”.

A condyloid joint is a biaxial joint that allows movement, such as flexion, adduction, and extension in two axes. It does not allow rotational movement. Therefore, it is a wrong answer.

Option (d) is given as, “saddle”.

The saddle joint occurs in the bones that are saddle shaped. It is a synovial joint that allows movements such as flexion, abduction, and circumduction but no rotation. Hence, it is a wrong answer.

Option (e) is given as, “hinge”.

Hinge joint is a type of synovial joint. It allows movements such as flexion and extension in a single axis. So, it is a wrong answer.

Hence, options (a), (b), (d), and (e) are incorrect.

Conclusion

The humerus produces both internal and external rotation because it is a ball-and-socket joint.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 4

Question

Chapter 9, Problem 1TYR

Summary Introduction

Introduction:

A joint is a region where two bones or a bone and a cartilage meet. The humerus is the bone of the upper arm that runs from the shoulder to the elbow. The humerus connects with the scapula to form the shoulder joint. Rotation is the movement of the bone around an axis. Internal rotation occurs when the shoulder revolves towards the midline and external rotation occurs when the movement occurs away from the midline.

Expert Solution & Answer

Answer to Problem 1TYR

Correct answer:

The internal and external rotation of the humerus occurs because it is a ball-and-socket joint. Therefore, option c is correct.

Explanation of Solution

Justify reasons for the correct statement:

The ball and socket joint is a multiaxial synovial joint that allows movements such as flexion, extension, external and internal rotation in multiple axes.

Option (c) is given as, “ball-and-socket joint”.

The shoulder bone, the humerus is an example for ball and socket joint. The ball and socket joint occurs when the humerus head, which is ball shaped, fits into the socket of another bone, the scapula. It is a highly mobile joint that is involved in both internal and external rotational movements.

Hence, option (c) is correct.

Justify reasons for the incorrect statements:

Option (a) is given as, “pivot”.

Pivot joint is a freely movable synovial joint. It is a uniaxial joint that allows rotational movement only in a single axis. So, it is a wrong answer.

Option (b) is given as, “condylar”.

A condyloid joint is a biaxial joint that allows movement, such as flexion, adduction, and extension in two axes. It does not allow rotational movement. Therefore, it is a wrong answer.

Option (d) is given as, “saddle”.

The saddle joint occurs in the bones that are saddle shaped. It is a synovial joint that allows movements such as flexion, abduction, and circumduction but no rotation. Hence, it is a wrong answer.

Option (e) is given as, “hinge”.

Hinge joint is a type of synovial joint. It allows movements such as flexion and extension in a single axis. So, it is a wrong answer.

Hence, options (a), (b), (d), and (e) are incorrect.

Conclusion

The humerus produces both internal and external rotation because it is a ball-and-socket joint.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 5

Chapter 9, Problem 1TYR

Summary Introduction

Introduction:

A joint is a region where two bones or a bone and a cartilage meet. The humerus is the bone of the upper arm that runs from the shoulder to the elbow. The humerus connects with the scapula to form the shoulder joint. Rotation is the movement of the bone around an axis. Internal rotation occurs when the shoulder revolves towards the midline and external rotation occurs when the movement occurs away from the midline.

Expert Solution & Answer

Answer to Problem 1TYR

Correct answer:

The internal and external rotation of the humerus occurs because it is a ball-and-socket joint. Therefore, option c is correct.

Explanation of Solution

Justify reasons for the correct statement:

The ball and socket joint is a multiaxial synovial joint that allows movements such as flexion, extension, external and internal rotation in multiple axes.

Option (c) is given as, “ball-and-socket joint”.

The shoulder bone, the humerus is an example for ball and socket joint. The ball and socket joint occurs when the humerus head, which is ball shaped, fits into the socket of another bone, the scapula. It is a highly mobile joint that is involved in both internal and external rotational movements.

Hence, option (c) is correct.

Justify reasons for the incorrect statements:

Option (a) is given as, “pivot”.

Pivot joint is a freely movable synovial joint. It is a uniaxial joint that allows rotational movement only in a single axis. So, it is a wrong answer.

Option (b) is given as, “condylar”.

A condyloid joint is a biaxial joint that allows movement, such as flexion, adduction, and extension in two axes. It does not allow rotational movement. Therefore, it is a wrong answer.

Option (d) is given as, “saddle”.

The saddle joint occurs in the bones that are saddle shaped. It is a synovial joint that allows movements such as flexion, abduction, and circumduction but no rotation. Hence, it is a wrong answer.

Option (e) is given as, “hinge”.

Hinge joint is a type of synovial joint. It allows movements such as flexion and extension in a single axis. So, it is a wrong answer.

Hence, options (a), (b), (d), and (e) are incorrect.

Conclusion

The humerus produces both internal and external rotation because it is a ball-and-socket joint.

Answer 6

Chapter 9, Problem 1TYR

Summary Introduction

Introduction:

A joint is a region where two bones or a bone and a cartilage meet. The humerus is the bone of the upper arm that runs from the shoulder to the elbow. The humerus connects with the scapula to form the shoulder joint. Rotation is the movement of the bone around an axis. Internal rotation occurs when the shoulder revolves towards the midline and external rotation occurs when the movement occurs away from the midline.

Expert Solution & Answer

Answer to Problem 1TYR

Correct answer:

The internal and external rotation of the humerus occurs because it is a ball-and-socket joint. Therefore, option c is correct.

Explanation of Solution

Justify reasons for the correct statement:

The ball and socket joint is a multiaxial synovial joint that allows movements such as flexion, extension, external and internal rotation in multiple axes.

Option (c) is given as, “ball-and-socket joint”.

The shoulder bone, the humerus is an example for ball and socket joint. The ball and socket joint occurs when the humerus head, which is ball shaped, fits into the socket of another bone, the scapula. It is a highly mobile joint that is involved in both internal and external rotational movements.

Hence, option (c) is correct.

Justify reasons for the incorrect statements:

Option (a) is given as, “pivot”.

Pivot joint is a freely movable synovial joint. It is a uniaxial joint that allows rotational movement only in a single axis. So, it is a wrong answer.

Option (b) is given as, “condylar”.

A condyloid joint is a biaxial joint that allows movement, such as flexion, adduction, and extension in two axes. It does not allow rotational movement. Therefore, it is a wrong answer.

Option (d) is given as, “saddle”.

The saddle joint occurs in the bones that are saddle shaped. It is a synovial joint that allows movements such as flexion, abduction, and circumduction but no rotation. Hence, it is a wrong answer.

Option (e) is given as, “hinge”.

Hinge joint is a type of synovial joint. It allows movements such as flexion and extension in a single axis. So, it is a wrong answer.

Hence, options (a), (b), (d), and (e) are incorrect.

Conclusion

The humerus produces both internal and external rotation because it is a ball-and-socket joint.

Answer 7

Chapter 9, Problem 1TYR

Summary Introduction

Introduction:

A joint is a region where two bones or a bone and a cartilage meet. The humerus is the bone of the upper arm that runs from the shoulder to the elbow. The humerus connects with the scapula to form the shoulder joint. Rotation is the movement of the bone around an axis. Internal rotation occurs when the shoulder revolves towards the midline and external rotation occurs when the movement occurs away from the midline.

Answer 8

Expert Solution & Answer

Answer to Problem 1TYR

Correct answer:

The internal and external rotation of the humerus occurs because it is a ball-and-socket joint. Therefore, option c is correct.

Answer 9

Expert Solution & Answer

Answer 10

Expert Solution & Answer

Answer 11

Explanation of Solution

Justify reasons for the correct statement:

The ball and socket joint is a multiaxial synovial joint that allows movements such as flexion, extension, external and internal rotation in multiple axes.

Option (c) is given as, “ball-and-socket joint”.

The shoulder bone, the humerus is an example for ball and socket joint. The ball and socket joint occurs when the humerus head, which is ball shaped, fits into the socket of another bone, the scapula. It is a highly mobile joint that is involved in both internal and external rotational movements.

Hence, option (c) is correct.

Justify reasons for the incorrect statements:

Option (a) is given as, “pivot”.

Pivot joint is a freely movable synovial joint. It is a uniaxial joint that allows rotational movement only in a single axis. So, it is a wrong answer.

Option (b) is given as, “condylar”.

A condyloid joint is a biaxial joint that allows movement, such as flexion, adduction, and extension in two axes. It does not allow rotational movement. Therefore, it is a wrong answer.

Option (d) is given as, “saddle”.

The saddle joint occurs in the bones that are saddle shaped. It is a synovial joint that allows movements such as flexion, abduction, and circumduction but no rotation. Hence, it is a wrong answer.

Option (e) is given as, “hinge”.

Hinge joint is a type of synovial joint. It allows movements such as flexion and extension in a single axis. So, it is a wrong answer.

Hence, options (a), (b), (d), and (e) are incorrect.

Answer 12

Conclusion

The humerus produces both internal and external rotation because it is a ball-and-socket joint.

Answer 13

Ch. 9.1 - Prob. 1BYGO Ch. 9.1 - Prob. 2BYGO Ch. 9.1 - Prob. 3BYGO Ch. 9.1 - Prob. 4BYGO Ch. 9.1 - Prob. 5BYGO Ch. 9.1 - Prob. 6BYGO Ch. 9.1 - Prob. 1AYLO Ch. 9.1 - Prob. 2AYLO Ch. 9.1 - Prob. 3AYLO Ch. 9.1 - Prob. 4AYLO

Videos

Answer to Problem 1TYR

Explanation of Solution

Want to see more full solutions like this?

Chapter 9 Solutions