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rectus abdominus
responsible for maintaining posture, flexing lumbar spine, and aids in breathing.
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quadriceps femoris group
moves leg
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fibularis longus
moves ankle and foot
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tibialis anterior
moves ankle and foot
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frontalis
facial expression
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obicularis occuli
facial expression
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obicularis oris
facial expression
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sternocleidomastoid
moves head
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pectoralis major
moves arm
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biceps brachii
flexes arm
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triceps brachii
extension of arm
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hamstring group
moves leg
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gastrocnemius
moves ankle and foot
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latissimus dorsi
moves arm
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gluteus maximus
moves thigh
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zygomaticus
facial expression
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external intercostals
breathing
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internal intercostals
breathing
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external obliques
flexion and rotation of vertebra
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internal obliques
breathing, rotates and side bends trunk
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transversus abdominus
thoracic and pelvic stability, aids in labor
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serratus anterior
moves scapula
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rotator cuff muscles
moves arm
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The term for the expanded portion at the ends of a long bone is
C. epiphysis
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Which type of bone cell breaks down bone and deposits calcium into blood.
A. osteoclast
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The term for a rounded opening through a bone is
D. foramen.
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Which of the following are cranial bones
D. a & b
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The name for the first cervical vertebra is the
D. atlas
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The most superior part of the sternum is the:
B. manubrium
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The glenoid process is part of which bone?
D. scapula
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The acetabellum is a part of which bone?
C. coxal bone
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Which bone forms the heel?
A. Calcaneus
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A joint that is slightly movable is called?
A. amphithrosis
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The joint found between the atlas and the axis is what type of synovial joint?
C. pivot
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Choose the phrase you could use when describing the skeletal muscle?
D. b and c.
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Select the connective tissue covering of a muscle that is most superficial.
B. epimysium
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The portion of the muscle cell membrane that extends into the muscle and conveys nerve signals is called the:
D. transverse (T) tubules
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Thin filaments are composed of
D. actin, troponin, tropomysin
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Which of the following is the process in the muscle cell that requires oxygen to produce ATP?
A. cellular respiration
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A motor unit is:
D. a motor nerve and all of the muscle fibers it inervates.
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An increase in muscle size caused by increasing the number of myofibrils in individual muscle cells is called
A. hypertrophy
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A certain muscle produces most of its energy aerobically, contains many mitochondria, contracts quickly, and is resistant to fatigue. What kind is it?
A. intermediate twitch fiber.
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What muscle is named for its shape?
C. latissimus dorsi
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Which muscle of facial expression is also used for swallowing?
a. frontalis
b. masseter
c. zygomaticus
d. buccinator
buccinator
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Which arm muscle extends the forearm?
D. triceps brachii
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Which of the following types of neurons are multipolar?
D. both motor neurons and interneurons
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During an action potential , depolarization occurs because
a. channels for sodium ions in the cell membrane open and sodium flows into the cell
b. channels for potassium ions open and potassium leaves the cell.
c. the sodium-potassium pump returns sodium to the outside of the cell and potassium to the inside.
a. channels for sodium ions in the cell membrane open and sodium flows into the cell.
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An excitatory neurotransmitter escites the post-synaptic cell because:
A. it opens the sodium channels so sodium can enter the cell.
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The deepest of the three meninges is
A. pia mater
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Which of the following is correct?
D. the primary somatasensory area is in the parietal lobe
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Which structure integrates motor commands to make sure that proper muscle groups are activated or inhibited?
D. basal nuclei
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Which of the following cranial nerves transmits sensory signals about hearing and ballance?
C. vestibular cochlear
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Which spinal nerve supplies the diaphragm?
A. phrenic
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Put the following parts of a reflex in the correct order
1. effector,
2. sensory receptor,
3. motor nerve,
4. sensory nerve,
5. interneuron.
C. 2-4-5-3-1
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A ______ carries nerve impulses away from the cell body.
axon.
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During the depolarization portion of an action potential _______ ions are moving to the ______ of the nerve fiber
sodium, inside
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the space between the axon ending of one neuron and the dendrite of another is the _______
synaptic cleft
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Ach is broken down by the enzyme ______ after it has initiated the action potential
acetycholenestorase
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Motor nerves stimulate _______/
effectors
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In a simple reflex pathway only the _____ is found entirely in the CNS.
interneuron
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The ______ is the part of the brain responsible for coordinating movement
cerebellum
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The _____ is the part of the brain responsible for consciousness.
reticular formation
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The brain and spinal cord are covered protective layers called _______.
meninges
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______ muscle is uninucleated, non-striated and located in the walls of internal organs.
smooth muscle
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the fascia called _______ seperate muscle fibers from one another within a fassicle.
endomysium
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When a muscle a fiber contracts, an _______ myofilament slides past a myosin myofilament.
actin
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The energy molecule _______ is needed for muscle fiber contraction.
ATP
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Whole muscles have ________, a condition in which some fibers are always contracted.
tone
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When muscles contract, the _____ does most of the work but _______s help.
prime mover, synergist help.
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The _____ is a muscle in the arm that has two origins
biceps brachii
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The _____ acts as the origin of the latissimus dorsi and the _____ acts as the insertion during most activity.
lower spine, humerus
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Sensory receptors for pain are called
A. nociceptors
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Which of the following is a receptor for fine touch
D. Meisner corpuscle.
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Following are pairs senory receptor and stimuli to which they respond. choose correct pairs.
D. a and b
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Which of the following states about sensation of taste is correct.
E. all of the above
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A correct statement about smell is
a. taste and smell sensation travels through some of the brain area.
b. olfactory epithelium is located right at the entrance to the nasal cavity.
c. an odor is made by a single type of odor molecule.
d. a and c
e. all of the above.
a. taste and smeall sensation travels through the same brain area.
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Complete the statement the gustatory control center is located in the ____ lobe and olfactory is located in the ____ lobe.
A. insula and temporal
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Which of the fllowing structures is part of the choroid?
d cornea
C. iris
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The posterior compartment of the eye is filled with
B. vitreous humor
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Which statement is true?
D. Light stimulus to rod cells the release of neurotransmitter from the rods.
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