BIO Quiz 2 Flashcards
the muscle action of the posterior fibers of the adductor magnus includes:
hip extension and adduction
tilting the foot upwards, decreasing the angle between the top of the foot and the front of the leg, is called
A. plantar flexion.
B. dorsiflexion
C. extension
D. pronation
b. dorsiflexion
the basic functional unit of the skeletal muscle fibers is the
a. myofibrils.
b. sarcomere
c. mitochondria.
d. Z discs
b. sarcomere
The form of the external ear is composed of
A. fibrocartilage
B. elastic cartilage
C. osseous tissue
D. hyaline cartilage.
b. elastic cartilage
The largest sesamoid bone in the body, and one of the few that is almost universally present, is the _____.
a. Patella
b. Tarsal
c. Calcaneus
d. Femur
a. patellar
the knee joint is an example of a ___ joint
a. hinge
b. ball and socket
c. saddle
d. gliding
a. hinge
The myofilament that can be described as bundled golf clubs with their heads sticking out from the bundle is
A. troponin
B. actin
C. myosin
D. tropomyosin
c. myosin
which of the following is NOT a major function of muscle tissue
a. generating heat through contractions
b. Production of Vitamins
c. stabilizing the movement of joints
d. promoting the movement of body structures
b. production of vitamin
This is the property of muscle that gives it the ability to extend and stretch, allowing muscles to return to their resting length
a. extensibility
b. contractility
c. excitability
d. elasticity
a. extensibility
which of the following is an incorrect statement regarding heat production
A. The body temperature set point is established by the hypothalamus.
B. Shivering will increase body temperature.
C. Body temperature functions on a negative feedback mechanism.
D. All of these are correct.
d. all of these are correct
Skeletal muscle is _______and _______ while cardiac muscle is ______ and ______
a. smooth/ involuntary and smooth/voluntary
b. striated/voluntary and smooth/involuntary
c. striated/voluntary and striated/involuntary
d. smooth/voluntary and striated/involuntary
c. striated/voluntary and striated/involuntary
The nerve that supplies the adductor brevis is the:
obturator nerve
If a goniometer reads zero, it most likely indicates that the joint
A. is fully flexed.
B. is in the anatomical position.
C. has been injured and is somewhat dislocated.
D. is hyperextended
b. is in anatomical position
moving a part of the body forward is
A. protraction
B. elevation
C. inversion
D. depression
a. protraction
Aerobic pathways are very rapid, occur when low levels of O2 are available and used in quick action movements
True
False
false
