The Skeletal System - Appendicular Skeleton (Chapter 8 - Week 4)

The Shoulder Girdle:

• What is the shoulder girdle commonly referred to as?

• How many bones are included (name them a. b.)?

• What does it articulate with?

• Pectoral girdle

• 2 bones (a. Clavicle and b. Scapula)

• Articulates upper limb with axial skeleton

The Shoulder Girdle:

• What does the medial end of the clavicle articulate with?

• What does the lateral end of the clavicle articulate with?

• The manubrium of the sternum

• The acromion of the scapula

The Shoulder Girdle: What are the two main joints formed by the clavicle? (which end)

1. Sternoclavicular joint (medial end)

2. Acromioclavicular joint (lateral end)

The shoulder girdle articulates the upper limb with the axial skeleton, which bone(s) involved in it does this

Only the clavicle

The Shoulder Girdle:

• What is the function of the Scapula?

• What do fossas and processes serve as?

• Position shoulder joints, base for arm movement

• serve for muscle attachment 

The Shoulder Girdle:

• What does the Acromion of the scapula articulate with and form?

• What does the Glenoid Cavity of the scapula articulate with and form?

• The clavicle, forming the acromioclavicular joint

• The head of the humerus, forming the glenohumeral joint.

The Shoulder Girdle:

Based on the description. Name and label the cavity and process of the Scapula.

1. Smooth depression for head of humerus attachment.

2. Spoon-shaped.

1. Glenoid cavity

2. Acromion

What type of joint does the Glenohumeral joint make?

Ball and socket joint

The Arm, Humerus: 

• What does the proximal end of the humerus articulate with?

• What markings on the proximal end of the humerus serve for muscle attachment?

• The scapula, at the glenoid cavity

• tubercles and tuberosity

The Arm, Humerus: 

• What does the Distal end of the humerus form?

• What markings on the Distal end of the humerus serve for muscle attachment?

• Forms the elbow joint

• Epicondyles.

The Arm, Humerus: Which process of the distal end of the Humerus….

• … laterally connects to radius?

• …medially connects to ulna?

• …Fits the olecranon (tip of elbow)?

• Capitulum

• Trochlea

• Olecranon fossa

The Arm, Humerus: Name that motherfucking depression or process on the distal end of the humerus.

1. Capitulum

2. Epicondyles

3. Trochlea

4. Epicondyle