Ch. 1 - Types of joints Flashcards
1
Q
Synarthrodial
A
immovable joints, fibrous
2
Q
What are the two types of synarthrodial joints?
A
- suture - sutures of cranial bones
- Gomphosis - sockets of teeth
3
Q
Amphiarthrodial
A
slightly movable joints, cartilaginous and fibrous
4
Q
What are the three types of amphiarthrodial joints?
A
- Syndesmosis - held together by ligaments (coracoclavicular and inferior tibiofibular joint)
- Symphysis - separated by a fibrocartilage pad (symphysis pubis and the intervertebral disks)
- Synchondrosis - separated by hyaline cartilage (costochondral joints)
5
Q
Diarthrodial
A
- synovial joints, freely movable
- contains synovial fluid (lubricant stored in the bursa)
6
Q
Arthrodial
A
- diarthrodial joint
- two flat/plane, or bony surfaces that butt against each other (tarsals and metatarsals)
- 2 DOF
7
Q
Condyloidal
A
- diarthrodial joint
- ball and socket, bone permits movement in two planes w/o rotation (wrist)
- 2 DOF
8
Q
Enarthrodial
A
- diarthrodial joint
- ball and socket joint that permits movement in all planes (shoulder and hip)
- 3 DOF
9
Q
Ginglymus
A
- diarthrodial joint
- hinge joint that permits wide range of movement in one plane (elbow, knee, ankle)
- 1 DOF
10
Q
Sellar
A
- diarthrodial joint
- saddle joint that permits ball and socket movement except for slight rotation (thumb/carpometacarpal)
- 1 DOF
11
Q
Trochoidal
A
- diarthrodial joint
- pivot/screw joint that allows for rotational movement around a long axis (rotation of the radius and ulna)
- 1 DOF
12
Q
Degrees of freedom are directly proportional to?
A
the number of planes that a joint has motion in (1 plane of motion = 1 DOF)
13
Q
Davis’ law
A
ligaments, muscles, and other soft tissue when placed under appropriate tension will adapt over time by lenghtening
14
Q
What are the five factors that affect the total stability and mobility of a joint?
A
- bones
- cartilage
- ligaments and connective tissue
- muscles
- proprioception and motor control
