Which of the following characteistics is describing the muscle tissue type found in the myocardium? select all that apply intercalated discs parallel and tightly packed fibers striated controlled by somatic nervous system

Which of the following characteistics is describing the muscle tissue type found in the myocardium? select all that apply intercalated discs parallel and tightly packed fibers striated controlled by somatic nervous system

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

See similar textbooks

Similar questions

5. W hich structure is present in the right ventricle of the sheep's heart, but not in the left ventricle? Make a labeled sketch of cardiac muscle as you observed it under the microscope. Label the nucleus, intercalated discs, sarcolemma, and striations. 6. Cardiac Muscle Magnification: 7. Identify two differences between the structure of cardiac muscle tissue and skeletal muscle tissue Cardiac muscle tissue Skeletal muscle tissue
The contracting cells of the heart are a type of striated muscle that is said to work as a functional syncytium. Provide a definition for “functional syncytium” and describe important functional characteristics and cellular specializations
Conduction through which of the following occurs directly after SA node is initiated. -AV node -Atria -Purkinje fibers -SA node -bundle of HIS
Which specific tissue is located in the walls of the heart and has branching cells
True or False: All types of blood vessels have smooth muscle? True False Previous
Which of the following changes to blood flow is expected to occur as a result of dynamic exercise? Group of answer choices An increase in cardiac output of up to 5X normal An increase in the percent of blood flow to the skeletal muscle compared to at rest All of these occur An increase in ejection fraction
Cardiomyopathy results in a thickened, hyperkinetic ventricular heart muscle Hypertrophic Dilated Restrictive Obstructive
The refractory period of cardiac muscle is much longer than that of skeletal muscle. Why is this a desirable functional property?
Please I need help understanding this question, I'm not sure if I'm understanding it right.
In acorn worms and pterobranchs, the force for ultrafiltration is generated by: Group of answer choices muscles of the protocoel cilia of the protocoel duct cilia of the pericardial peritoneum cilia of the protocoel peritoneum muscles of the pericardium
Caffeine lowers the heart rate by increasing rates of depolarization at the SA node True False Nicotine raises the heart rate because it stimulates the activity of the sympathetic neurons in medulla oblongata True False The Frank-Starling Law of the Heart states that the force of heart contraction is directly proportional to the initial length of the muscle fiber, within optimal limits of length True False If the sarcomeres stretched beyond the optimal length, the force of contraction would go down, but that can potentially happen only during open heart surgery when the heart is not constrained by the pericardium, lungs, ribs and diaphragm. True False It is the Na+ channel-driven spontaneous depolarization that is affected by sympathetic and parasympathetic inputs to speed up or slow down the firing rate of the SA node and other conductive cells. True False
Microscopic Anatomy of Cardiac Muscle 12. Add the following terms to the photo of cardiac muscle at the right: intercalated disc nucleus of cardiac muscle fiber striations cardiac muscle fiber Cordial nucleus of musik fibe