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Anatomy Quarter 2- 2023 > Lecture 12: Antebrachium and Carpus > Flashcards

Lecture 12: Antebrachium and Carpus Flashcards

1
Q

The antebrachium is the portion of the thoracic limb between the

A

Elbow and carpus

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2
Q

Carpus includes bones of the ____

A

Wrist

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3
Q

Manus includes the _____

A

Metacarpals and phalanges

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4
Q

Movement of the forearm is achieved via muscles that move the ___

A

Elbow joint

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5
Q

What are the bones of the antebrachium

A

Radius, ulna carpals

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6
Q

The antebrachial muscles primarily act on ____

A

Carpus and digits

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7
Q

What artery innervates the caudal compartment of the antebrachium

A

Median, ulnar, radial

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8
Q

What nerve innervates the caudal compartment of the antebrachium

A

Median, ulnar

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9
Q

What

A
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10
Q

what Is the main action of the caudal compartment of the antebrachium

A

Flexion and pronation of carpus and digits

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11
Q

What artery supplies the cranio-lateral compartment of antebrachium

A

Superficial brachial artery

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12
Q

What nerve innervates cranio-lateral compartment of antebrachium

A

Radial

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13
Q

What is the main action of cranio-lateral compartment of the antebrachium

A

Extension and supination

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14
Q

Order of osteology of carpus and manus

A

Accessory bone, ulnar carpal, intermedioradal carpal, carpals 1-4, metacarpals 1-5, phalanges (proximal, intermediate distal)

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15
Q

Where is the dorsal sesamoid bone in the manus

A

Between metacarpals and phalanges

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16
Q

Where is proximal sesamoid bone in the manus

A

Above proximal phalanx I

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17
Q

Which animal has a fused radius and ulna

A

Horses

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18
Q

What bones are in the proximal row of carpus

A

Radial carpal, intermediate carpal, ulnar carpal, accessory bone

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19
Q

Which animal has a fused radial and intermediate carpal bones

A

dogs

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20
Q

What are the bones in the distal row of carpus

A

Carpals 1-4

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21
Q

Which animal has a fused 2+3 carpals

A

Ruminants

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22
Q

What are the joints of the wrist

A

Distal radioulnar, antebrachiocarpal, midcarpal, carpal metacarpal

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23
Q

Ginglymus

A

Hinge with some lateral movement
Present in carpal joint (besides ungulates)

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24
Q

Degree of Movement of antebrachiocarpal joint

A

Very mobile

25
Degree of movement of midcarpal
Somewhat mobile
26
Degree of movement of carpal metacarpal joint
Somewhat mobile
27
Oblique movement in ruminants is ____
Limited
28
Degree of movement in antebrachiocarpal joint in ungulates
Very mobile
29
Degree of movement in midcarpal joint of ungulates
Somewhat mobile
30
Degree of movement in carpal metacarpal joint of ungulates
No movement
31
Medial and collateral ligaments of the wrist
Well developed in ungulates, weaker in carnivores, permit some abduction and adduction
32
Deep palmar ligament
Covers entire palmar surface of skeleton, hides unevenness of bones
33
Superficial, transverse ligament
Passes obliquely to accessory carpal bone to medial aspect of carpal Completes the enclosure of carpal canal/tunnel
34
What is the carpal Canal/tunnel
Conveys are flexor tendons to manus from antebrachium
35
Distal ligament of accessory bone
Join bone of carpals to metacarpals, prevent overextension
36
High risk injury risk
Permanently pronated antebrachium create a valgus-outwardly angled elbow joint therefore high rise injuries can cause lateral condyle fractures of humerus and/or hyperextension of carpal and palmar ligaments
37
Muscles that are developmental dorsal will be ____ in brachium and ____ in antebrachium
Caudal, cranial
38
Muscles that are developmentally ventral will be ___ in brachium and ___ in antebrachium
Cranial, caudal
39
What muscles are in the craniolateral compartment of antibrachium
Brachioradialis, extensor carpi radialis, extensor digitorum communis, extensor digitorum lateralis, ulnaris lateralis, abductor digit I longus, extensor digit I et II
40
Where do all craniolateral muscles of antebrachium originate
lateral epicondyle of humerus
41
Brachioradialis OINA
O: lateral epicondyle of the humerus I: distal 3rd of radius N: radial A: extension and supination
42
Extensor carpi radialis OINA
O: lateral epicondyle of femur I: metacarpals 2+3 N: radial A: extension and supination
43
Extensor digitorum communis
O: lateral epicondyle of humerus I: phalanxes 2-5 N: radial A: extension and supination
44
Extens
45
Ulnaris lateralis OINA
O: lateral epicondyle of humerus I: metacarpal 5 N: radial A: extension and supination
46
Abductor digit longus OINA
O: lateral epicondyle of humerus I: metacarpal I near sesamoid N: radial A: extension and supination
47
Supination OINA
O: lateral epicondyle of humerus I: radius N: radial A: extension and supination
48
Where do muscles of caudal of the antebrachium originate
Medial epicondyle of humerus
49
OINA for pronator teres
O: medial epicondyle of humerus I: radius N: median A: Flexion and pronation
50
OINA for pronator quadratus
O: medial epicondyle of humerus I: radius N: median A: Flexion and pronation
51
OINA for flexor carpi radialis
O: medial epicondyle of humerus I: palmar side of M2+3 N: median A: Flexion and pronation
52
OINA for flexor carpi ulnaris
O: medial epicondyle of humerus I: accessory bone N: ulnar A: Flexion and pronation
53
OINA for flexor digitorum superficialis
O: medial epicondyle of humerus I: metacarpals 2-5 N: median A: Flexion and pronation
54
OINA for flexor digitorum profundus
O: medial epicondyle of humerus I: phalanges 2-5 N: ulnar and median A: Flexion and pronation
55
What is the function of retinacula
Functions like a pulley to distribute muscle forces Enclose tendons and keep them close to bone Maintain ligaments in position to prevent injury and generate force
56
Extensor carpi obliquus
Abductor digits I longus (horse, equivalent to abductor digit I longus in dog) Inserts: on medial splint bone
57
What muscle does cephalic vein lie on`
Extensor carpi radialis
58
What vein is connected to cephalic
Median cubital
59
Carpal tunnel will lead to inflammation and compression of what nerve
Median

Anatomy Quarter 2- 2023 (39 decks)

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