Muscles of the Forelimb Part 1 Flashcards by Savannah Brantley

Extrinsic musculature

synsarcosis, forms a dynamic sling

How well did you know this?

Not at all

Perfectly

Extrinsic musculature origin

neck, back and thoracic region

How well did you know this?

Not at all

Perfectly

Extrinsic musculature insertion

scapula or humerus

How well did you know this?

Not at all

Perfectly

Extrinsic musculature can be divided into:

superficial or deep

How well did you know this?

Not at all

Perfectly

Extrinsic musculature lies ______ to the intrinsic muscles of the cranial trunk

superficial

How well did you know this?

Not at all

Perfectly

intrinsic musculature

bridges one or more joints of the same limb

How well did you know this?

Not at all

Perfectly

intrinsic musculature movement

extends and flexes joints, abducts, adducts, and rotates joint structures

How well did you know this?

Not at all

Perfectly

superficial extrinsic muscles

Brachiocephalicus, Trapezius, Sternocephalicus, Omotransversarius, Latissimus dorsi, superficial pectoral

How well did you know this?

Not at all

Perfectly

deep extrinsic muscles

deep pectoral, subclavius, rhomboideus, serrates ventralis

How well did you know this?

Not at all

Perfectly

is superficial extrinsic muscle ascending or descending?

descending

How well did you know this?

Not at all

Perfectly

is deep extrinsic muscle ascending or descending?

ascending

How well did you know this?

Not at all

Perfectly

What two muscles are the exception to being extrinsic or intrinsic?

sternocleidomastoid and sternocephalic

How well did you know this?

Not at all

Perfectly

sternocephalicus

How well did you know this?

Not at all

Perfectly

2 overall term

brachiocephalicus

How well did you know this?

Not at all

Perfectly

2 top portion

cleidocervicalis (right) and cleidomastoid (left)

How well did you know this?

Not at all

Perfectly

2 bottom portion

cleidobrachialis

How well did you know this?

Not at all

Perfectly

omotransversarius

How well did you know this?

Not at all

Perfectly

5 overall term

trapezius

How well did you know this?

Not at all

Perfectly

5 cranial portion

cervical trapezius

How well did you know this?

Not at all

Perfectly

5 caudal portion

thoracic trapezius

How well did you know this?

Not at all

Perfectly

deltoideus

How well did you know this?

Not at all

Perfectly

latissimus dorsi

How well did you know this?

Not at all

Perfectly

tricep (long and lateral)

How well did you know this?

Not at all

Perfectly

pectoralis profundus

How well did you know this?

Not at all

Perfectly

The brachiocephalicus is made up of 3 parts. What are they?

Cleidocephalicus, Cleidomastoid, Cleidobrachialis

Brachiocephalicus innervation

accessory spinal nerve

Brachiocephalicus origin

nuchal ligament

Brachiocephalicus insertion

clavicular intersection

the cleidobrachialis attaches to:

distal 1/3 cranial surface of humerus

Brachiocephalicus is what kind of muscle?

compound muscle

The cervical portion of the cleidocephalicus is bounded cranially by:

occipital part of the sternocephalicus

The cervical portion of the cleidocephalicus is bounded caudally by:

trapezius

The cleidocephalicus attaches to:

median raphae and nuchal crest

the cleidomastoid attaches to:

mastoid process

origin

attachment, proximal

insertion

distal

trapezius muscle characteristics

triangular, thin, flat

Trapezius is divided into two parts:

cervical and thoracic

Trapezius is bounded cranially by:

cleidocephalicus

Trapezius is bounded caudally by:

latissimus dorsi

Trapezius action

abduct forelimb (elevates)

trapezius insertion

scapular spine

trapezius origin

supraspinous ligament & nuchal ligament

aponeurosis

provides attachment for wide muscles

Trapezius overlaps

latissimus dorsi GET CLARIFICATION

What overlaps the trapezius?

cleidocephalicus GET CLARIFICATION

Nuchal ligament origin

spinous process of T1

nuchal ligament insertion

caudal aspect of spinous process of the axis

Sternocephalicus two parts:

pars mastoideus, pars occipitalis

Ventral portion of sternocephalicus

pars mastoideus

dorsal portion of sternocephalicus

pars occipitalis

How many muscle bellies are on the sternocephalicus?

What crosses the sternocephalicus obliquely?

jugular vein

Pars occipitalis characteristics

flat, thin

pars mastoideus characteristics

thick, rounded, the "chief"

Pars occipitalis insertion

nuchal crest

pars mastoideus insertion

mastoid process

sternocephalicus origin

manubrium sterni

Sternocephalicus action

draw head and neck to side

sternocephalicus innervation

accessory nerve and ventral branches of cervical nerves

omotransversarius characteristics

straplike

omotransversarius origin

scapular spine

omotransversarius insertion

wing of atlas

omotransversarius innervation

accessory nerve

omotransversarius is deep or superficial to cleidocephalicus

deep

omotransversarius is next to what lymph node

superficial cervical lymph node

Superficial pectoral muscles have two parts:

descending and transverse

superficial pectoral characteristics

caudal border = thin cranial border = thick/round

descending pectoral characteristics

smaller, superficial

descending pectoral origin

1st sterbebra

descending pectoral insertion

crest of the greater tubercle of the humerus

transverse pectoral origin

first 2-3 sternebrae

transverse pectoral insertion

crest of the greater tubercle of the humerus

deep =

ascending

superficial pectoral action

adduct limb

Superficial pectoral muscle extends from:

sternum to humerus

cranial portion of superficial pectoral

descending

caudal portion of superficial pectoral

transverse

superficial pectoral function when weight baring

prevent adduction

what nerve is found below the transverse muscle

brachioplexis

superficial pectoral innervation

cranial pectoral nerve and accessory spinal nerve

axillary region

armpit

superficial pectoral thickness increases going:

caudally