Exam 4

Question 1

Skeletal Muscle organization

Answer 1

Muscle>fascicles>fibers>myofibrils

Question 2

Skeletal muscle organization in connective tissue

Answer 2

Epimysium>perimysium>endomysium

Question 3

Epimysium: surrounds entire _________ and blends into intramuscular tissue sheaths to form __________

Answer 3

Muscle

Tendon

Question 4

Surrounds a bundle of fibers called fasciculus

Answer 4

Perimysium

Question 5

Endomysium: wraps each muscle _______ and separates it from _____________ fibers

Answer 5

Fiber

Neighboring

Question 6

Skeletal muscle muscle fiber organization

Answer 6

Multinucleate > sarcolemma> sarcoplasm> sarcoplasmic reticulum

Question 7

Fusiform: run __________ to muscles long axis and _______ at its tendinous attachment

Answer 7

Parallel

Taper

Question 8

Pennate: fibers lie at __________ pennation angle; allow __________ of large number of fibers into a smaller cross sectional area

Answer 8

Oblique

Packing

Question 9

The element composition of muscle in water=

Answer 9

75%

Question 10

The element composition of muscle in protein=

Answer 10

20%

Question 11

Skeletal muscle fiber types characteristics

Answer 11

Primary mechanism used to produce ATP
Type of motor neuron innervation
Type of myosin heavy chain expressed

Question 12

Length-tension describes relationship between length of ___________ and amount of tension developed

Answer 12

Sarcomere

Question 13

Cross ridge=

Answer 13

Actomyosin complex

Question 14

The 2 divisions of the nervous system

Answer 14

Central nervous system(CNS)

Peripheral nervous system(PNS)

Question 15

Central nervous system

Answer 15

Brain and spinal cord

Question 16

Peripheral nervous system: ______ that transmit information to and from the _____

Answer 16

Nerves

CNS

Question 17

The brain stem consists of the

Answer 17

Medulla
Pons
Midbrain

Question 18

Medulla extends the ____ and serves as a ______ between the __________ two hemispheres

Answer 18

Pons
Bridge
Cerebellums

Question 19

Midbrain _______ to the cerebellum and forms a connection between the ____ and cerebral hemispheres

Answer 19

Attaches

Pons

Question 20

Spinal cord 3 types of neurons

Answer 20

Motor
Sensory
Interneurons

Question 21

Nerve cell

Answer 21

Neuron

Question 22

Axon

Answer 22

Projection of nerve cell(signal transmission)

Question 23

Synapse: junction between ____ of previous _______ and cell body of next neuron

Answer 23

Axon

Neuron

Question 24

The spinal cord conscious sensory receptors show sensitivity to _____ position, temperature, and sensation to light, sound, smell, taste, touch and _____

Answer 24

Body

Pain

Question 25

The spinal cord subconscious sensory receptors monitor _______ in the body’s _______ environment

Answer 25

Changes

Internal

Question 26

The peripheral nervous system contains ___ pairs of cranial nerves and 31 pair of ______ nerves

Answer 26

12

Spinal

Question 27

T/F

PNS includes afferent and efferent neurons

Answer 27

True

Question 28

Afferent neurons relay ________ information from ________ in periphery to CNS

Answer 28

Sensory

Receptors

Question 29

Efferent Neurons transmit information _____ from _____ to peripheral tissues

Answer 29

Away

Brain

Question 30

Somatic(voluntary): ________ skeletal muscle and produce ________ response to activate muscle

Answer 30

Innervate

Excitatory

Question 31

Autonomic nervous system(involuntary): produce either excitatory or _________ effect on smooth or involuntary muscles

Answer 31

Inhibitory

Question 32

T/F

The autonomic nervous system includes sympathetic and parasympathetic fibers

Answer 32

True

Question 33

Sympathetic

Answer 33

Supply heart, smooth muscle, sweat glands, and viscera

Question 34

Supply thorax, abdomen, and pelvic regions

Answer 34

Parasympathetic