Flashcards in Chapter 9- Articulations Deck (40)
Joints, or articulations, are classified on the basic of their degree of movement. What identifies the joints on the basis of: no movement, slightly moveable, freely moveable?
Synarthrosis, amphiarthrosis, diarthrosis
The amphiarthrotic articulation that limits movements between the two pubic bones is the...
The type of synarthrosis that binds each tooth to the surrounding bony socket is a...
Which joint is correctly matched with its type of joint?
The functions of synovial fluid that fills the joint cavity are...
1. It nourishes the chondrocytes
2. It provides lubrication
3. It acts as a shock absorber
The primary functions of menisci in synovial joints are...
1. To subdivide a synovial cavity
2. To channel the flow of synovial fluid
3. To allow for variations in the shapes of the articulate surfaces
Flex ion is defined as movement that...
Decreases the angle between articulating elements
Abduction and adduction always refer to movements of the...
Movements that occur at the shoulder and the hip represent the actions that occur at a...........joint
Ball and socket
The reason that the elbow and knee are called hinge joints is...
They permit angular movement in a single plane
The type of joint that connects the finger and toes with the metacarpals and metatarsals is an...
1. Condylar joint
2. Biaxial joint
3. Synovial joint
Examples of angular motion include...
1. Flexion and extension
2. Abduction and adduction
The parts of the vertebral column that do not contain intervertebral discs are the...
3. First and second cervical vertebrae
Movements of the vertebral column are limited to...
1. Flexion and extension
2. Lateral Flexion
The joint that permits the greatest range of motion of any joint in the body is the...
The elbow joint is quite stable because the...
1. Bony surfaces of the humerus and ulna interlock
2. Articular capsule is very thick
3. Capsule is reinforced by stout ligaments
Examples of monaxial joints, which permit angular movements in a single plane, are the...
Elbow and knee joints
The knee joint functions as a...
The reason the points of contact in the knee joint are constantly changing is...
The rounded femoral condyles roll across the top of the tibia
The risk of fractures increase with age because...
Bone mass decreases and bones become weaker
Arthritis encompasses all of the rheumatic diseases that affect...
The digestive and urinary systems are intimately associated with the skeletal system because they...
Provide calcium and phosphate minerals needed for bone growth
Localized masses of adipose tissue that protect articular cartilages and act as packing material for the joint are...
A movement away from the longitudinal axis of the body in the frontal plane is...
The opposing movement of supination is...
The special movement of the thumb that enables it to grasp and hold an object is...
Twiddling your thumbs during a lecture demonstrates the action that occurs at a...
A characteristic decrease in height with advanced age may result from...
Decreased water content of the nucleus pulposus in an intervertebral disc
When the nucleus pulposus breaks through the anulus and enters the vertebral canal, the result is an...