Skeletal System Flashcards
1
Q
What is the axial skeleton and how many bones?
A
central core (skull, hyoid, vertebral, ribs, sternum, ear ossicles)
80 bones
2
Q
What is the appendicular skeleton and how many bones?
A
upper & lower limbs, pelvic & pectoral girdle
126 bones
3
Q
What bones make up the pelvic girdle?
A
hip bones, sacrum & coccyx
4
Q
What bones make up the shoulder girdle?
A
clavicle & scapula
5
Q
What is the last bone to mature and when?
A
30 yrs old - sacrum
6
Q
Functions of skeletal system (5)?
A
- Protection
- Support
- Mineral depostion
- Blood element production
- Energy Storage (yellow marrow)
7
Q
Types of cartilage (3) and where you find them?
A
- Hyaline (joints)
- Elastic (ear)
- Fibrocartilage (spinal discs)
8
Q
The 2 types of bone?
A
- Compact bone
- Spongy/cancellous/trabecular bone
9
Q
Compact bone?
A
- superficial thin layer that provides strength
- lots at bone ends
10
Q
Spongy/cancellous/trabecular bone?
A
- deep to compact bone & superficial to marrow cavity
- contains many small spaces
11
Q
6 types of bones?
A
- Long (most common)
- Short (cube shaped, width = length)
- Flat (thin bones to distribute force)
- Irregular
- Sesmoid (develop in tendons)
- Sutural bones (in joints between skull)
12
Q
Epiphysis?
A
End of long bone
13
Q
Metaphysis?
A
Between epiphysis & diaphysis
14
Q
Diaphysis?
A
shaft of long bone
15
Q
Epiphysis growth plate?
A
only present prior to skeletal maturity
