Mod 2: SA Thoracic Limb Skeleton

SA Thoraic Limb Skeleton

Scapula

Humerus

Ulna

metacarpal bones

phalanges

Carpal bones

Radius

What are the main bones of the forelimb? (7)

– Scapula.

– humerus.

– radius.

– ulna.

– carpal bones.

– metacarpal bones.

– phalanges.

What bone is located in the brachium?

humerus

which bones are located in the antebrachium?

ulna

radius

What bones make up the carpus?

carpal bones

How many phalanges are in each digit?

3

What bones make up the manus?

carpal, metacarpal and phalangeal bones

Brachium

carpus

Digits

Manus

Antebrachium

What is the technical and common anatomical name?

Shoulder/scapulo-humoral joint

What is the technical and common anatomical name?

Elbow/humero-antebrachial joint

What is the technical and common anatomical name?

wrist/carpus

Flexion

decreases the angle between distal and proximal bones

what four parts of the thoracic limb flexes?

– Shoulder.

– Elbow.

– carpus

– digital joints

Where is the flexor surface of the shoulder joint?

Caudal aspect

where is the flexor surface on the elbow joint?

on the cranial aspect

Where is the flexor surface of the carpus?

On the Palmer aspect

Where is the flexor surfaces on the digital joints?

Palmer aspect of the manus

extension

increases the angle between distal and proximal bones

In relation to the extensor surfaces, where do the flexor surfaces sit?

on the opposite side

Abduction

Movement of a limb away from the body

adduction

movement of the limb toward the body

rotation

Rotational movement around a joint

Supination

Lateral rotation of the park so that the polymer aspects points dorsally

\
Like a cat, licks the bottom of its path,

consider, ladling soup.

Pronation

Medial rotation of the paw, so that the Palmer aspect of the paw points downward or backward

scapula

Attaches to trunk via synsarcosis

Subscapularis

Flat, medial surface of scapula

Scapular spine

Runs proximal to distal along the lateral surface.

Note: **always** on the lateral surface.

Supraspinous fossa

above the spine

Infraspinous fossa

Beneath or behind the spine

Scapular spine

supraspinous fossa

Infraspinous fossa

Scapulohumeral joint

Glenoid cavity

Glenoid cavity

articulates with the head of the humerus to form the scapulohumeral joint

infraglenoid tubercle

Supraglenoid cavity

Suprahamate process

Additional structure on the acromion of a fel

metacromion

Sticks out above the acroniom

acromion

suprahamate process of the acromion

on the humerus, where does the greater tubercle sit?

On the lateral side

Greater tubercle

Greater Tubercle

lesser tubercle

Lesser tubercle

Tubercle

Small rounded projection off a bone

Head of the humerus

articulates with the glenoid cavity of the scapula

Humeral head

Supratrochlear foramen

Canine

Above the trochlea of the humerus

Supracondylar foramen

fel

Above the condyle of the humerus

Trochlea of the humerus

Supratrochlear foramen

humeral condyle

Supracondylar foramen

Are the radius and ulna, in small animals, fused?

No

Can rotate around each other

How do the radius and the ulna attached to the carpus?

–radius medially.

\-ulna laterally.

Radial head

body of the radius

Radial tuberosity

Yellow

Groove for the extensor tendons

Radial styloid process

Body of the ulna

Olecranon

Olecranon tuber

Most proximal roughened surface of the olecranon

Where Muscles attach

Radial notch

Lateral coronoid process

Trochlear notch

Medial coronoid process

Anconeal process

Where the supratochlear foramen attaches

ulnar styloid process

Cradles the radius

Anconeal process

ulnar styloid process

Accessory carpal bone

Carpometacarpal joint

Which animal does not have a clavicle?

Dog

Definition: synsarcosis

The muscular joint that attaches the scapula to the thoracic muscle wall

accessory carpal bone location?

Located on the Palmer surface of the carpet, and on the lateral side

What is the common name for the brachium?

Arm

Contains the humerus

What is the common name for the antebrachium?

– Forearm

Contains the radius and the ulna

What is the common name for the carpus?

Wrist

when do we switch to dorsal and Palmer terminology?

At or below the carpus

Adduction

abduction

Supination

Pronation

What is another name for the feline suprahamate process?

Metacromion

Definition: tubercle

Small rounded projection off of a bone

How many tubercles does the humerus have?

2

What is another name for the greater tubercle of the humerus?

Points of the shoulder.

Cranial palpable anatomical landmark

Where is the humeral head located?

Caudal side