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bio 137 > exam 3 > Flashcards

exam 3 Flashcards

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Biology 101 flashcards
1
Q

Frontalis

A

Raises eyebrows and wrinkles forehead

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2
Q

Orbicularis oculi

A

Closes eye

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3
Q

Orbicularis oris

A

Closes lips; kissing and whistling

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4
Q

Sternocleidomastoid

A

Flexes, tilts, and rotates head

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5
Q

Zygomaticus

A

Raises corners of mouth; smiling

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6
Q

Masseter

A

Elevates (closes) and protracts jaw, as when chewing

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7
Q

Trapezius

A

Upper back

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8
Q

Pectoralis major

A

Chest

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9
Q

Rectus abdominis

A

Abs

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10
Q

Deltoid

A

Abducts, flexes, and rotates arm

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11
Q

Triceps brachii

A

Extends forearm

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12
Q

Biceps brachii

A

Flexes forearm

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13
Q

Gluteus maximus

A

Extends, abducts, and rotates thigh

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13
Q

Gracilis

A

Inner thighs

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14
Q

Vastus lateralis

A

Extends leg

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14
Q

Sartorius

A

Crosses the leg

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15
Q

Vastus medialis

A

Outer quad

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16
Q

Biceps femoris

A

Extends thigh and flexes leg

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17
Q

Rectus femoris

A

Back thigh

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18
Q

Gastrocnemius

A

Plantar flexion of the foot; flexes leg
Calf

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19
Q

skeletal muscle

A

*allows voluntary movement
*attached to bones

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20
Q

cardiac muscle

A

*heart
*heart contractions

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21
Q

smooth muscle

A

*found surrounding most hollow organs
*involuntary control of body openings

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22
Q

supporting cells

A

protect, support, and insulate the neurons

23
Q

neurons

A

large conduction cells of nervous tissue

24
Q

which ones are multinucleated
skeletal,cardiac, smooth

A

skeletal

25
Q

which ones are intercalated disk skeletal,cardiac, smooth

A

cardiac

26
Q

which ones are involuntary
skeletal,cardiac, smooth

A

cardiac and smooth

27
Q

which ones are striated skeletal,cardiac, smooth

A

skeletal and cardiac

28
Q

which ones are branched
skeletal,cardiac, smooth

A

cardiac

29
Q

latent period

A

before muscle contraction

30
Q

contraction

A

during contraction

31
Q

4 main areas of the brain

A

Cerebral, diencephalon, brain stem, and cerebellum

32
Q

What two parts of the cerebral have

A

Gyrus,sulcus

33
Q

What connect the left and right brain

A

Corpus callosum

34
Q

4 part of the cerebrum

A

Frontal, parietal,temporal, occipital

35
Q

Function of the cerebral

A

Higher level of coordination

36
Q

Functions of Diencephalon

A

Coordinates and controls signals between the brainstem and the cerebral hemispheres

37
Q

Function of Brain stem

A

(Midbrain, Pons and Medulla)
oblongata; controls basic body functions, respiration and heart

38
Q

Function of Cerebellum

A

coordinates muscle movement and muscle control; center of the cerebellum white matter in “tree “ or “fern” shape

39
Q

Gray matter

A

Outer brain cortex is grey matter, mainly dendrites and neuron cel

40
Q

White matter

A

Inner brain is white matter, mainly myelinated axons

41
Q

4 protective mechanisms for the brain

A

Skull (bone), CSF (fluid), Membranes (Meninges) and blood brain barrier

42
Q

3 meninges

A

Pia, Arachnoid, Dura

43
Q

Protective mechanisms for the spinal cord

A

Vertebra(bone); CSF (fluid) and Membranes (meninges)

44
Q

Spinal Nerves

A

all contain motor and sensory components, Sensory nerve is the dorsal root, Motor nerve is the ventral root

45
Q

They form nerve bundles called plexuses at the

A

Cervical, Brachial, Lumbar and Sacral levels.

46
Q

spinal cord forms nerves that pass through the openings in the sacrum

A

Cauda Equina, Fillum terminale.

47
Q

Olfactory Nerve

A

sensory for sense of smell; it originates on the cerebrum ONLY

48
Q

CN II: Optic

A

sense of vision

49
Q

CN V: Trigeminal

A

senstion of pain , touch and temperature; motor for chewing

50
Q

CN VIII: Vestibulocochlear

A

hearing and balance

51
Q

CN IX: Glossopharyngeal

A

taste sensation; motor saliva secretion

52
Q

Reflex arc:

A

receptor, sensory neuron, integration center, motor neuron, and effector

53
Q

Know why we have each of the below reflexes and what they mean or what nerve it is testing

A

Patellar Reflex- knee jerk, femoral nerve

Corneal Reflex- automatic blinking

Babinski Reflex- spinal damage

Pupillary Light Reflex- pupils dilate

54
Q

Eye Model

A

Iris, Pupil ,Cornea ,Optic Disc

55
Q

Ear Model

A

External auditory meatus, Tympanic membrane, Vestibulocochlear Nerve (CN VIII as it leaves the ear), Cochlea

56
Q

What is a motor unit

A

motor neuron and all the myofibers it innervates

bio 137 (3 decks)

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