Exam 1 pt1 Flashcards
When a landmark is located on the outside or father from the median of the body it is:
lateral
When you refer to the opposite limb, you can use the term ______.
contralateral
A muscle that is deep should be closer to:
the bone (Superficial muscles are close to the surface of the skin. Muscles which lie closer to bone or internal organs are called deep muscles.)
When the lumbar spine is curved inward in the sagittal plane, it has:
lordosis
With hip abduction, the motion occurs primarily in which plane
Frontal
The medio-lateral axis is at a right angle to which plane?
sagittal
Which of the following is true regarding Wolff’s law?
Bones are reshaped according to stresses placed on them
The epiphysis of a bone is:
located at the end of a long bone
Which of the following are factors that affect stability and mobility of a joint?
muscle properties
how many degrees of freedom does a hinge joint have?
1
more stability generally means less mobility within a joint
True
Which is true regarding Wolff’s Law?
exercise increases bone strength
Movements in the frontal plane occur around the anterior-posterior axis.
True
Movements in the transvers plane occur around the medio-lateral axis
False
Movements in the sagittal plane occur around the medio-lateral axis.
True
Flexion/extension occurs around which axis?
medio-lateral
Abduction/adduction occurs around which axis?
antero-posterior
Muscles connected to bones via tendons
True
When a muscle contracts, both ends pull towards the muscle belly/center.
True
During a joint motion, the distal segment is always the only segment that moves
False
When muscle tension is produced but no joint motion occurs, the contraction is:
isometric
When muscle tension is produced and the agonist muscle shortens, the contraction type is:
isotonic
When muscle tension is produced and the agonist muscle shortens, the isotonic muscle is:
concentric
When muscle tension is produced and the agonist muscle lengthens, the isotonic muscle action is:
eccentric
Eccentric muscle actions tend to control motion
True
Concentric muscle actions tend to prevent motion
False
Which of the following muscle roles function to prevent unwanted motions
Stabilizers, true synergists, and neutralizers
Which of the following muscle roles functions to provide a stable proximal joint for a distal joint motion?
Stabilizers
Which type of joint action produces the least amount of movement
Isometric
Ligaments connect ____ to ____
bone to bone
