Fill in the blank spaces:(a) All mammals (except a few) have __________ cervical vertebra.(b) The number of phalanges in each limb of human is __________(c) Thin filament of myofibril contains 2 ‘F’ actins and two other proteins namely__________ and __________.(d) In a muscle fibre Ca++ is stored in __________(e) __________ and __________ pairs of ribs are called floating ribs.(f) The human cranium is made of __________ bones.

Q: Scenario: You are driving down the street and suddenly a car pulls out in front of you. You swerve…

A: The muscular system plays an important role in the locomotion and movement of various parts of the…

Q: Which of the following muscle cell components helps spread the depolarization of the muscle cell…

A: The objective of the question is to identify the muscle cell component that is responsible for…

Q: Which item is biggest? A. myosin head B. myofibril C. troponin D. sarcomere

A: Muscles are compact structures made up of highly tensile , strong, long, multinucleated cells called…

Q: Select the best answer or answers from the choices given: Thick and thin myofilaments have different…

A: The term myofilaments refer to the myofibril filaments composed of proteins. The thick myofilaments…

Q: In the numbered list below, what are they in order from largest to smallest? 1. Myofilaments 2.…

A: Tissue is the next level organization of the cells. There are 4 different types of tissue are…

Q: A)Fill in the blanks below regarding sarcomeres: In a sarcomere, thin filaments are composed…

A: Sarcomere is the functional unit of striated muscle. Our skeletal muscle is made up of sacromeres .…

Q: identify the incorrect statement about skeletal muscle  (A) the epimysium, perimysium, and…

A: Concentric isotonic contractions - contractions that involve shortening of the muscle are referred…

Q: During contraction, the bulk of calcium comes from:   A. sarcomere   B. sarcoplasm…

A: There are two questions. One question has been answered. To get the answer for the other question,…

Q: List five proteins of the myofilaments and describe their physical arrangement.

A: The myofilaments are the proteins that make up the contractile elements of muscle cells. There are…

Q: Xena eventually catches Callisto (remember, she is 25 years old). Salmoneus, who is 60 years old,…

A: Introduction :- Muscles are a type of soft tissue. Your muscles are made up of a lot of elastic…

Q: When a(n) __________ moves along the sarcolemma, the membrane potential changes along the membrane…

A: The sarcolemma is the cell membrane of the muscle cells. When a muscle is stimulated by a neuron at…

Q: Each of the pairs of phrases below describe steps during skeletal muscie contraction. The 2nd phrase…

A: Muscle tissue is a type of tissue which contain actin , Troponin and myosin proteins so as to allow…

Q: muscle spidnles are _____ receptors and provide ____ information, whereas golgi tendon organs…

A: The majority of skeletal muscles contain this stretch receptor, which is widely distributed. When a…

Q: Once the calcium binds, what happens next? The myosin binding sites become available so myosin binds…

A: Muscles contract" in a sequence of binding and delivering amid the sarcomere's two thick and thin…

Q: Which statement or statements describe why depletion of ATP after death leads to rigor mortis?

A: Rigor mortis is the third phase of death. It is one of the unmistakable indications of death,…

Q: Match the level of skeletal muscle organization given in the key with its description:Key:(a) muscle…

A: 1) rod shaped organelle made of sarcomeres :  myofibril…

Q: The events during the leg phase of a muscle fiber twitch begin with................ and end…

A: Muscle is a soft and contractile tissue that is responsible for body movement. Muscle cells consist…

Q: a) Both Callisto and Salmoneus break several ribs and suffer trauma to the external intercoastal…

A: Changes in bones due to ageing Ageing is not an event but is defined as a continuous process by…

Q: Please fill in the blanks: 21) the binding of ______________ to troponin removes troponin from…

A: Introduction :- Troponin is a complex of three regulatory proteins (troponin C, troponin I, and…

Q: Choose the best description of how myosin and actin are arranged within the two types of protein…

A: In order to facilitate movement, muscles are attached to bones. They function by shortening…

Q: An explanation leading to the correct answer would be helpful! Scenario: Your friend Arnold S, who…

A: Weightlifting is a popular and effective form of resistance training that plays a pivotal role in…

Q: Which one of the following statements related to muscles is not true? 1. the epimysium layer is…

A: The tissue derived from embryonic mesoderm, and involved in movement and locomotion by virtue of its…

Q: Limiting Weights is the exercise that stimulates muscles to become stronger. As muscles gain in….…

A: Muscular strength can be said as the ability to move and lift objects. It can be measured by that…

Q: [ANIMAL PHYSIOLOGY] When animals die, the muscles stiffen in rigor mortis because. Select one: O a.…

A: Rigor mortis is a phenomenon occurring in the body when the body dies. It is a postmortem…

Q: In what position is the biceps brachii most likely to make the most amount of tension when…

A: Note: “Since you have asked multiple question, we will solve the first question for you. If you want…

Primate evolution

Primates are a relatively new species and first appeared in the fossil record nearly 55 million years ago. They may have originated as far back as the cretaceous period. Their fossils were observed in North America, Asia, and Europe. Long before the first monkeys and their prosimian relatives developed, most animal species thrived and died. The first primates did not exist until about 50-55 million years ago, even though the planet is 4.54 billion years old and the first life goes back at least 3.5 billion years. Dinosaurs had been extinct for 10 to 15 million years when this happened.