Appendicular skeleton Upper Flashcards
What makes up the upper appendicular skeleton
-Upper extremities
-Pectoral girdle
-Lower extremities
-Pelvic girdle
How many bones are in the upper appendicular skeleton and what are they?
Upper Appen. - 64 bones
-Clavical (2)
-Scapula (2)
-Humerus (2)
-Ulna (2)
-Radius (2)
-Carpals (16)
-Metacarpals (10)
0Phalanges (28)
How many bones are in the pectoral girdle and what are they?
Pect. - 4 bones
-Clavical (2)
-Scapula (2)
What is the collar bone
Clavicle
What are the shoulder blade bones
Scapula
What are these features of the scapula?
1. Bony process that extends laterally from the superior and posterior portion of the scapula
2. Bony process that extends laterally from the superior and anterior portion of the scapula
3. A depression in the lateral portion of the scapula where the humerus joins the scapula
- Acromion
- Coracoid process
- Glenoid cavity (fossa)
How many bones are in the upper extremities of the appen. and what are they?
Upper extremities (arms) - 60
-humerus
-Radius
-Ulna-
Carpals
-Metacarpals
-Phalanges
Long bone of the arm
-attaches to scapula at the proximal end
-attaches to the radius and ulna and the distal end
-head articulates with the scapula (glenoid cavity)
-Radius and Ulna articulate at the lateral and medial condyles/epicondyles
Humerus
What are these features of the humerus?
1.Lateral, distal condyle that articulates with the Radius
2. Medial, distal condyle that articulates with the Ulna
- Capitulum
- Trochlea
Medial distal arm bone
Ulna
What are these features of the Ulna?
1. Eminence at the proximal, posterior end of the ulna
2. Eminence on the distal end of the ulna
- Olecranon process
- Styloid process
Lateral distal arm bone
Radius
What is this feature of the Radius?
1. Eminence on the distal end of the radius
- Styloid process
Bones that make up the wrist
-16 total (8 on each side)
Carpals
Bones that make up the palms
-10 (5 on each side)
Metacarpals
