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Bio 223A > Bio 223A Exam 3 > Flashcards

Bio 223A Exam 3 Flashcards

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Biology 101 flashcards
1
Q

What is muscle atrophy?

A

When muscle appears smaller than due to a lack of wasting muscle tissue

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2
Q

What are cramps

A

A painful, involuntary contraction of a muscle

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3
Q

What is muscle dystrophy?

A

A group of genetic diseases that cause progressive weakness and loss of muscle mass

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4
Q

What is the origin of a muscle?

A

Muscle starches on bones, Origin: attachment of a muscle on the more stable bone

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5
Q

What is the insertion of a muscle?

A

Insertion: attachment of a muscle on the more moveable bone

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6
Q

What is synergist?

A

Assist the agonist for a specific action at a joint, make movements for accurate and fluid

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7
Q

What is antagonist?

A

Anatagonist is a muscle particularly one that works opposite to the action of the primary muscle

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8
Q

What do we call muscles that have their fascículo arranged like barbs of a feather along a common tendon?

A

Pénnate (Bipennate)

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9
Q

What kind of muscles act as a sphincter?

A

Circular fascicle

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10
Q

The muscle extensor digitorum longus is named on what basis?

A

Size, location and action

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11
Q

What is the muscle trapezius named for? Shape? Length. Function?

A

Shape

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12
Q

When you say quadracep femoris, what is the name based on.

A

Four- headed muscle and location

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13
Q

If you hyperextended your head, which class lever system does it represent?

A

First class lever

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14
Q

If you flex your elbow, which class lever system does it represent?

A

Third class lever

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15
Q

If you flex your elbow, which class lever system does it represent?

A

Third class lever

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16
Q

If you contract your left sternocleidomastiod, what would happen to your head?

A

It would rotate

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17
Q

Raising your eyebrow is the action of which muscle?

A

Frontalis

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18
Q

Puckering your lips?

A

Orbicularis oris

19
Q

Chewing gum

A

Temporalis, master, buccinator

20
Q

If you have hypertrophied mental is muscle, what would you have?

A

Dimpled chin

21
Q

What is the major movement of a muscle that is used during breathing?

A

Diaphragm

22
Q

What type of contractions would your abdominal muscles do against your vertebral column?

A

Isometric contractions

23
Q

What are the muscles of the rotator cuff? What are their function?

A

Supraspinatus, infraspinatus, Teres minor, subscapularis

24
Q

Someone injures their shoulder hitting a ball high up, which muscle of the rotator cuff would be damaged?

A

Supraspinatus

25
Q

What muscle raises your arm to your shoulder level?

A

Deltoid

26
Q

Which muscle group in your forearm are flexors?

A

Flexor carpi

27
Q

Which muscles group in your forearm are extensors?

A

Extensor carpi ulnaris

28
Q

What muscle flexes the wrist?

A

flexor carpi radialis, and flexor carpi ulnaris.

29
Q

Extensor policies radials, what does this muscle move?

A

Extends the thumb

30
Q

Thenarand hypothenar muscles control what?

A

Thumb

31
Q

If your sprinter and you hold your stance, which one of your muscles is contracted?

A

Gluteus Maximus

32
Q

What is the largest buttock muscle?

A

Gluteus Maximus

33
Q

What is the site for gluteal injection?

A

Gluteus medius

34
Q

If you give an injection on the interior aspect of your thigh, what muscle are you injecting?

A

Rectus femoris

35
Q

What muscles constitute the quadracep femoris?

A

Rectas femoris, vastus laterales, vastus medialis, vastus intermedialis

36
Q

Biceps femoris make up which muscle group

A

Hamstrings

37
Q

Which muscles for. The bulging of the calf?

A

Gastrocnemius and soelus

38
Q

What muscles is inserted on the calcaneus by the Achilles tendon?

A

Gastrocnemius

39
Q

What is the function of the tensor fascia latae?

A

Hip joint flexión, abduction, medial rotation: assists in flexión of the thigh

40
Q

Refractory period( absolute)

A

The time where the muscle does not respond to stimulus

41
Q

Refractory period (relative)

A

relative;;a period after firing when a neuron is returning to its normal polarized state and will fire again only if the incoming message is much stronger than usual

42
Q

Types of muscles

A

Smooth, cardiac, skeletal

43
Q

What is a triad?

A

Two terminal cisternae and a t tubule

Bio 223A (15 decks)

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