Laboratory 3

trochlear notch

a c-shaped notch that articulates with the trochlea of the humerus

intertubercular groove

a groove that separates the greater and lesser tubercles

radial tuberosity

a large rough bump, inferior to the head and neck of the radius and points medial

coracoid process of scapula

a projection-like structure on the superior anterior side of the scapula; branches off the glenoid fossa

supraspinous fossa

an indentation of the bone located above the spine of the scapula on the posterior side of the scapula. it is a very smooth and thin piece of bone located between the superior and medial border of the scapula. it houses the supraspinous muscle

head of humerus

articulates with the glenoid cavity of the scapula, which is the connection of the upper limbs of the appendicular skeleton to the axial skeleton. this faces toward the medial side of your body

acromion process

at the end of the spine of the scapula you have a thumb-like process that rises over the head of the humerus on the superior posterior side of the scapula. this process is the attachment point for the corracoacromial ligament, which crosses over the head of the humerus to the coracoid process of the scapula

anatomical neck

borders the head of humerus

hamate

has a unique hook-like structure that makes it easily identifiable. the medial bone of the distal row.

triquetrum

in the proximal row, located directly next to the pisiform and can be located on the posterior region of the hand

styloid process of radius

is located at the distal end of the bone. it is the large pointed portion at the end of the bone, which articulates with the carpal bones

capitulum

located at the distal end of the humerus on the lateral side; a marble-like structure

glenoid fossa (cavity)

located between the acromion process and the coracoid process is this. it is a smooth depression for the articulation of the head of the humerus. this faces the lateral side of the scapula

surgical neck

located inferior to the anatomical neck and both tubercles. the surgical neck is the structure surgeons use when they need a clean cut of the bone

deltoid tuberosity

located inferior to the surgical neck, it can be identified by its rough texture. this structure is where the deltoid muscle of the shoulder attaches to the humerus

lesser tubercle

located lateral to the head of the humerus and anterior to the greater tubercle. (site for muscle attachment)

greater tubercle

located laterally (outside) to the head of the humerus. it is a large bump-like structure toward the posterior side of the humerus. (site for muscle attachment)

ulna

located medially of the forearm when in the anatomical position and lines up with the metacarpal #5 (or pinkie finger)

coronoid process of the ulna

located on the anterior portion of the ulna. it is an extension of the trochlear notch.

subscapular fossa

located on the anterior side of the scapula, there is a large smooth depression where the subscapularis sits. this depression is where it is.

olecranon process

located on the anterior side of the ulna, the olecranon process is commonly known as the tip of the elbow. the process is superior to the trochlear notch and fits into the olecranon fossa of the humerus

head of ulna

located on the distal part of the ulna, it is the entire disc-shaped end of the ulna that articulates with the carpal bones to form the wrist joint

radial notch

located on the lateral side of the ulna, it articulates with the head of the radius. it also lies next to the coronoid process.

infraspinous fossa

located on the posterior side of the scapula below the spine of the scapula. it is the larger smooth region of the bone for muscle attachment. it is between the medial border of the scapula and the lateral border of the scapula, where the infraspinatus muscle can be found

clavicle

located within the pectoral girdle of the thoracic region. this type of long bone is the only "long bone" that lies horizontally within the body. it connects the scapula and the sternum and serves as a support "strut". it is connected to the manubrium of the sternum by the sternoclavicular joint and the acromion of the scapula by the acromionclavicular joint.

biceps brachii muscle tendon

on the anterior portion of the shoulder joint, and continues down the anterior portion of the humerus. this tendon runs along the intertubercular groove in between the greater and lesser tubercles

medial epicondyle of humerus

on the distal end of the humerus on the medial side

lateral epicondyle of humerus

on the lateral side of the distal end of the humerus, close to the capitulum

superior border

one of the three main borders of the scapula, and the thinnest. it is located off of the coracoid process of the scapula. it runs from the base of the coracoid process to the topmost point of the scapula.

spine

runs from the medial border of the scapula to the beginning of the acromion process on the lateral border and posterior side of scapula. also separates the supraspinous fossa and the infraspinous fossa from each other and becomes more pronounced as it gets closer to the lateral border. also commonly used as a reference point for the posterior side of the scapula

phalanges

the bones that make up the fingers. each finger is made up of three of them.

olecranon fossa

the first depression is the deepest and is located on the posterior side of the humerus. this depression has a triangular shape, connects to the olecranon process of the ulna, and sits superior to the trochlea on the posterior side of the humerus

head of radius

the head of the radius is the disk-shaped end of the bone, which is located on the proximal end of the bone. this part of the radius articulates with the ulna's radial notch.

lateral border

the lateral border is located medially, or is the one that is closest to the spine and below the acromion and coracoid processes. it is on the same side as the glenoid fossa, facing the head of humerus.

coracoacromial ligament

the ligament that connects the acromion and the coracoid process of the scapula.

medial border

the medial border is located medially, or is the one that is closest to the spine, or opposite from the acromion and coracoid processes

styloid process of ulna

the pointed tip at the distal end (head of the ulna) of the ulna. found on the medial side of the ulna

radius

the radius is one of the two bones that make up the forearm. it is located on the thumb side of the arm. aligns with the thumb or metacarpal #1

scapula

the scapula is located on the posterior region of the human body. it is the "shoulder blade" or "wings" of the back. it connects the humerus with the clavicle and forms the pectoral girdle. it is triangular in shape.

coronoid fossa

the shallow depression located on the anterior side of the humerus. this depression connects to the coronoid process of the ulna.

pisiform

the small medial bone of the proximal row, located in the anterior region of the hand. directly anterior to the triquetrum.

rotator cuff tendons

the tendons located around the ball and socket articulation between the head of the humerus and the glenoid cavity of the scapula.

humerus

the upper arm bone in the appendicular skeleton that runs from your shoulder to your elbow. it is anatomically superior to the ulna and radius and is proximal to the scapula

metacarpals #1-#5

these bones make up the palm of the hand. they articulate with the carpals and the proximal phalanges of each phalange. these five long bones are labeled with numbers starting with the thumb side.

trochlea

to the medial side of the capitulum, this structure has an hourglass shape to it. it is just inferior to the coronoid fossa from the anterior point of view