Anatomy 2 Packet 5 The pectoral Girdle & Upper Extremities

Name the distal structures of the humerus

1) Capitulum 2) Trochlea 3)Coronoid Fossa 4) Olecranon Fossa

List the proximal structures of the Humerus

1) Head 2) Anatomical Neck 3)Greater Tubercle 4)Lesser Tubercle 5) Surgical Neck

Name the proximal structures of the Radius

1) Head 2) Neck 3) Radial Tuberosity

List the distal structures of the Ulna

1) Head of the Ulna 2) Styloid process of the Ulna

Name and define the lateral row of the carpal bones , going from lateral to medial,

1) Multangular Major aka Trapezium- four-sided figure with no two sides parallel 2) Multangular Minor aka Trapezoid- a four sided figure with two sides parallel 3) Capitate- head shaped 4) Hamate- Hook shaped

Name the 6 Parts of the Scapula

1) The Spine 2) Acromion Process(acrom=topmost) 3) Glenoid Cavity aka Glenoid Fossa 4) Vertebral Border 5) Axillary Border 6)Coracoid Process

List the Proximal Structures of the Ulna

1)Olecranon Process 2) Coronoid Process 3) Semi-Lunar Notch aka Trochlear Notch 87

Name and define the proximal row of the carpal bones , going from lateral to medial,

1. Navicular or Scaphoid bone-boat shaped and largest carpal bone 2) Lunate bone- moon shaped 3) Triquetrum bone- 3 cornered shaped. 4) Pisiform bone -pea shaped bone

How many Phalanges are there ?

14 per hand

The pectoral girdle and upper extremities are composed of ___ Bones

64 bones

How many Carpal bones are there in the wrist ?

8 carpal bones per wrist

Each pectoral girdle consists of ?

A clavicle and scapula

Define the Coracoid Process border of the scapula

A hook like projection located on the anterior, superior surface of the lateral end of the scapula

Describe the Scapula

A large, flat triangular bone located in the dorsal portion of the thorax.

A single finger bone is called ?

A phalanx

The Ulna articulate with ?

Articulates proximally with the humerus and articulates distally with the carpal(wrist) bones

The Humerus articulates with ?

Articulates proximally with the scapula Articulates distally at the elbow with both the radius and ulna

The pectoral girdle attaches what bones ?

Attaches the bones of the upper extremity to the axial skeleton

The bones of the wrist are called the ?

Carpal Bones

In the deep venous return, what is the lateral vein of the forearm(Radius) ?

Cephalic Vein

We refer to these as our "collar bones"

Clavicles

T or F: The pectoral girdle articulates with the vertebral column

False

The Greater and Lesser Tubercle function as ?

Function as insertions form many muscles of the upper extremity

How are the carpal bones arranged ?

In 2 transverse rows ( a proximal and distal row) of 4

Define the Olecranon Process of the Ulna

Inserts into the olecranon fossa of the humerus Forms the prominence of the elbow Forms the bump of the elbow

Define the Acromial end aka Acromial Extremity and its articulation

Is the lateral end of the clavicle; it is thinner, flatter and broader than the sternal end It articulates with the acromion process of the scapula forming the acromioclavicular articulation

Define the Ulna

Is the medial (pinky side)bone of the forearm(elbow to wrist)

Define the Axillary border of the scapula

Is the thicker lateral border of the scapula Is located near the axilla

Define the Acromion process of the scapula

It is the flattened, expanded portion of the spine It is the lateral end of the spine

Define the Surgical Neck of the humerus

Located just distal to the tubercles the constriction portion where the head tapers to the diaphysis Gets it name because of its liability for fractures

The Ulna is _____than the Radius

Longer

Define the Capitulum of the humerus and its articulation

Looks like a round knob located on the lateral side of the humerus located on the lateral side of the humerus articulates with the head of the radius

Define the phalanges

Make up the distal part of the hand Are the bones that make up the digits(fingers) of each hand Are long bones

What is the lateral artery of the forearm

Radial Artery

In the deep venous return, what is the lateral vein of the forearm ?

Radial Vein

The shoulder blade is referred to as the

Scapula = Singular Scapulae = plural

The names of the carpel bones reflect their _____?

Shape

The aka for Pectoral Girdle

Shoulder Girdle

The Clavicle has a _____ end and ______ end ?

Sternal end and Acromial end (extremity)

In the superficial venous return, what is the medial vein of the forearm ?

The Basilic Vein

The bone of the arm( shoulder to elbow) is called ?

The Humerus

This is the largest and strongest bone of the upper extremities

The Humerus

Name the distal structure of the Radius

The Styloid process

What is the medial artery of the forearm ?

The Ulnar Artery

Define the Coronoid Fossa of the humerus

The anterior depression on the front of the bone receives the coronoid process of the Ulna when the forearm is flexed (bent)

Define the Lesser Tubercle of the humerus

The anterior projection

Define the Coronoid Process of the Ulna

The anterior projection of the Ulna Receives the coronoid fossa of the humerus when the forearm is flexed Also receives the trochlea of the humerus

Explain the articulations of the Metacarpal bones

The base articulates with the distal row of the carpal bones The head articulates with the proximal phalanges

Define the Semi-Lunar Notch aka Trochlear of the Ulna

The large curved area between the olecranon process and the coronoid process half-moon shaped Also forms part of the elbow joint.

Define the Head of the humerus and its articulation

The large, rounded portion articulates with the glenoid fossa or cavity of the scapula

Define the radius and its articulations

The lateral (thumb side) of the forearm Articulates proximally with the humerus Articulates distally with the carpal bones (wrist)

Define the Greater Tubercle of the humerus

The lateral projection just distal to the head You can feel this is the most lateral projection in the shoulder region

5 bones that make up the palm of the hand are called ?

The metacarpal bones

Define the Metacarpus

The middle region of the hand

Define the sternal aka the Sternal Extremity and what does is articulate with ?

The sternal end is the medial end of the clavicle It articulates with the clavicular notch of the sternum forming the sternoclavicular articulation

Define the Vertebral border of the scapula

The thin medial border of the scapula Lies closer to the vertebral column

Define the Carpus

The wrist, the proximal portion of the hand

How are the Phalanges arranged regarding digits ?

There are 2 phalanges in the first digit(thumb or polex) and the rest of the digits have 3 bones.

Describe the position and shape of the clavicle bone

They are slender S shaped bones They lie horizontally in the superior and anterior part of the thorax & superior to the first rib

In the deep venous return, what is the medial vein of the forearm ?

Ulnar Vein

The carpal bones are united by ?

United to each other by ligaments

Each of the metacarpal bones have ?

a proximal base, a shaft, and a distal head

Define the Radial Tuberosity

a roughened projection on the medial side located distal to the neck Serves as a point of attachment for the biceps brachii muscle

Define the Glenoid Cavity of the Scapula aka the Glenoid Fossa

a slight indentation on the lateral aspect of the scapula

The Acromion process of the Scapula articulates with ?

articulates with the acromial end of the clavicle, forming the acromioclavicular articulation

Define the head of the Ulna

articulates with the carpal bones (wrist bones)

The Glenoid cavity(scapula) articulates with the

articulates with the head of the humerus forming the shoulder joint (glenohumeral articulation)

Define the Head of the Radius

disc-shaped articulates with the capitulum of the humerus

The purpose of a styloid process in general

generally provides points of attachments for ligaments and/or muscles.

Each Phalange has ?

has a proximal base, a shaft, and a distal head

Define the Anatomical Neck of the humerus

it is an oblique groove lies just distal to the head of the humerus

Define the neck of the radius

located inferior to the head the constricted portion

Define the Trochlea of the humerus and its articulation

located medially to the capitulum looks like a pulley or spool-shaped surface articulates with the ulna (medial bone of the forearm)

Define the Styloid process of the Radius

located on the lateral side serves as a point of attachment for muscles of the forearm & ligament of the wrist -you can feel this proximal to the thumb

Define the Olecranon Fossa of the humerus

located on the posterior portion of the humerus receives the Olecranon Process of the Ulna when the forearm is extended (straightened)

Where are the Scapulae located ?

situated between the 2nd and 7th Ribs

Knuckles are formed by ?

the head of the metacarpal bones when the hand is closed.

The carpal bones of the distal row articulate with ?

the metacarpal bones

Define the Spine of the scapula

the sharp ridge that runs diagonally along the dorsal aspect of the scapula

The coracoid process of the scapula is where what tendons attach ?

where the tendons of the pectorals minor, coracobrachialis and biceps brachii muscles attach