Anatomy Muscle Tissue

Topics: Muscle, Muscle contraction, Skeletal muscle Pages: 12 (2977 words) Published: February 17, 2013
Chapter 10- Muscle Tissue

Choose the best answer to each of the following questions.
1) How does muscle tissue contribute to homeostasis?
A) by generating heat that helps maintain body temperature
B) by moving materials through the body
C) by pulling on bones to move the body
D) A and B are correct.
E) A, B and C are correct.

2) The primary function of muscle is
A) conversion of chemical energy into mechanical energy.
B) conversion of chemical energy into radiant energy.
C) conversion of mechanical energy into heat energy.
D) conversion of heat energy into mechanical energy.
E) conversion of heat energy into chemical energy.

3) Skeletal muscle
A) is striated.
B) is under voluntary control.
C) is primarily regulated by hormones from the endocrine system. D) A and B are correct.
E) A, B and C are correct.  
4) Cardiac muscle
A) is found in the walls of blood vessels and in the heart.
B) is largely under voluntary control.
C) is striated.
D) contraction is dependent on stimulation by the nervous system. E) is unaffected by hormones.  
5) Smooth muscle
A) is largely under voluntary control.
B) is located in the coverings of solid organs.
C) is striated.
D) moves blood through the heart
E) is regulated by the autonomic division of the nervous system.

6) Which of the following is a function of muscle tissue?
A) absorbing heat from the environment
B) storage of triglycerides
C) controlling flow of materials out of the stomach and urinary bladder D) destabilizing body position
E) storing calcium
7) The ability to respond to stimuli by producing action potentials A) is called electrical excitability.
B) is a property of muscle tissue.
C) is not exhibited by nervous tissue.
D) A and B are correct.
E) A, B and C are correct.
8) The ability of a muscle tissue to stretch without being damaged is called A) electrical excitability.
B) contractility.
C) extensibility.
D) irritability.
E) elasticity.
9) A muscle fiber (myofiber) is a muscle
A) contractile unit.
B) cell.
C) protein.
D) sarcomere.
E) A and B are correct.  
10) Superficial fascia
A) is composed primarily of dense connective tissue.
B) provides a route for lymphatic and blood vessels as well as nerves to enter muscles. C) is found between the skeletal muscles and the bones.
D) stores most of the body’s proteins.
E) promotes heat loss.  
11) Deep fascia
A) is composed of loose (aerolar) connective tissue.
B) is found between the muscles and the skin.
C) holds muscles with similar functions together.
D) limits movement of muscles.
E) blocks the penetration of nerves and blood vessels into muscles.    
12) The outermost extension of deep connective tissue that surrounds a muscle is the A) endomysium.
B) epimysium.
C) perimysium
D) tendon.
E) aponeurosis. 
13) A tendon
A) attaches a muscle to a bone.
B) is an extension of the fused endomysium, perimysium and epimysium of a muscle. C) contains parallel bundles of collagen fibers.
D) A and B are correct.
E) A, B and C are correct.
14) Which of the following is NOT true?
A) Several nerves accompany each artery that penetrates a muscle cell. B) Muscle tissue is highly vascular.
C) Somatic motor neurons control skeletal muscle contraction. D) Somatic motor neurons branch; each branch may control a muscle fiber. E) A muscle fiber uses large amounts of ATP during contraction.    

15) A skeletal myofiber
A) has one centrally located nucleus.
B) is derived from embryonic cells called myoblasts.
C) retains mitotic potential even in the adult.
D) A and B are correct.
E) A, B and C are correct.  
16) An adult has more muscle mass than a child. How did that increase in muscle mass occur? A) atrophy
B) dysplasia
C) hyperplasia
D) dystrophy
E) hypertrophy 
17) Transverse tubules
A) are actually tiny pockets of plasma membrane that extend into the muscle cell. B) are filled with interstitial fluid.
C) prevent the...
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