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BIOLOGY 474 Lab > Lab 5 > Flashcards

Lab 5 Flashcards

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1
Q

CAT
pectoantebrachialis

A

origin: manubrium of sternum

Insertion: fascia of the antebrachium

Action: adducts and protracts humerus

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2
Q

CAT
pectoralis major and minor

A

origin: sternum

Insertion: humerus

action: adducts humerus

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3
Q

CAT
xiphihumeralis

A

origin: xiphoid * process of sternum

insertion: humerus

action: adducts and retracts humerus

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4
Q

CAT
clavotrapezius

A

origin: spinous process

insertion: clavical

action: pulls scapula dorsally

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5
Q

CAT
acromiotrapezius

A

origin: spinous process

insertion: acromion

action: pulls scapula dorsally

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6
Q

CAT
spinotrapezius

A

origin: spinous process

insertion: spine of scapula

action: protracts humerus

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7
Q

CAT
latissimus dorsi

A

origin: spinous process through lumbodorsal fascia

insertion: humerus

action: retracts humerus

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8
Q

CAT
levator scapulae ventralis

A

origin: atlas

insertion: scapula

action: pulls scapula cranially

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9
Q

CAT
spinodeltoid

A

origin: spine of scapula

insertion: mid-humerus

action: retracts humerus

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10
Q

CAT
acromiodeltiod

A

origin: acromion

insertion: mid-humerus

action: retracts humerus

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11
Q

CAT
clavobranchialis

A

origin: clavicle

insertion: mid-humerus

action: protracts humerus

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12
Q

where is the clavicle

A

it is not attached to any bone, and it floats in the connective tissue at the insertion of the clavotrapezius and the clavobranchialis

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13
Q

what would be the advantage of having these several distinct muscles, rather than a single muscle

A

more subtle variety of movement

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14
Q

define protraction of the humerus

A

extending outwards

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15
Q

define retraction of the humerus

A

bringing toward the body

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16
Q

what are the rhomboid group and settates ventralis homologous with

A

portions of the external oblique muscles of amphibians

17
Q

CAT
subscapularis

A

origin: subscapular fossa

insertion: lesser tuberosity

action: adducts humerus

18
Q

CAT
supraspinatus

A

origin: supraspinatus fossa

insertion: greater tuberosity

action: protracts humerus

19
Q

CAT
infraspinatus

A

origin: infraspinatus fossa

insertion: greater tuberosity

action: lateral rotation

20
Q

CAT
teres minor

A

origin: cranial border of scapula

insertion: greater tuberoisity

action: medial rotation

21
Q

CAT
teres major

A

origin: caudal border of scapula

insertion: proximal humerus

action: retracts humerus

22
Q

CAT
rhomboideus (capitis, cervices, and thoracis parts)

A

origin: spinous process

insertion: vertebral (superior) border of scapula

action: pulls scapula cranially, or toward cervical/yhoracic vertebrae

23
Q

CAT
serratus ventralis

A

origin: ribs

insertion: vertebral (superior) border of scapula

action: protracts scapula (pulls it downard)

24
Q

when standing, which muscle of a quadrupedal mammal, like a cat, bears the weight of the body on the forelimb?

A

serratus ventralis

25
Q

CAT
epitrochlearis

A

origin: joins latissimus dorsi

insertion: olecranon

action: extends elbow

26
Q

CAT
triceps brachii

A

origin: 2 ‘heads’ from humerus, one from scapula near glenoid

insertion: olecranon

action: extends elbow

27
Q

CAT
anconeus

A

origin: lateral epicondyle

insertion: olecranon

action: extends elbow

28
Q

CAT
coracobranchialis

A

origin: coracoid process

insertion: proximal humerus

action: adducts humerus

29
Q

CAT
biceps brachii

A

origin: scapula near glenoid

insertion: radial tuberosity

action: flexes elbow

30
Q

CAT
brachialis

A

origin: humerus

insertion: proximal ulna

action: flexes elbow

BIOLOGY 474 Lab (9 decks)

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