Unit 1: Lecture 3 Self-study Flashcards Preview

OT 716 - Unit I > Unit 1: Lecture 3 Self-study > Flashcards

Flashcards in Unit 1: Lecture 3 Self-study Deck (21)
Loading flashcards...
1
Q

Smooth Muscle

A

walls of hollow viscera (GI tract, blood vessels)

innervation is via the autonomic nervous system.

2
Q

Cardiac Muscle (myocardium)

A

no innervation is needed, except for regulation of rate, contractile strength

the myocardium has inherent contractility

3
Q

Skeletal Muscle

A

40% of the body mass in normal adults and is the type of muscle attached to the skeleton for moving and supporting joints.

4
Q

Muscle always ________ across a ________

A

pulls; joint

5
Q

A muscle always pulls a joint through an ________

A

excursion

6
Q

Prime Mover

A

main muscle used in specific muscular action

7
Q

Synergist

A

assist the prime mover, and compliment its action

8
Q

Fixator

A

immobilize a joint while another is activated

9
Q

Antagonists

A

stabilize a joint while the opposite prime movers are contracting, thus preventing undesired actions (dislocation) during movement of the joint

10
Q

Muscle fiber ::

A

muscle cell

11
Q

Fibers are ___________, with ______ located at the periphery of the fiber (________ _________)

A

multinucleated; nuclei; syntactical arrangement

12
Q

Epimysium (deep fascia)

A

the whole sheath around a muscle

consists of collagenous fibers

13
Q

Tendon

A

relatively avascular structures which muscles use to attach to bone around the joint around which it wishes to move

14
Q

Aponeurosis

A

(flat sheet of connective tissue)

attachment of muscles to each other

15
Q

Unipennate

A

muscle fibers approach tendon from one side

16
Q

Bipennate

A

muscle fibers approach tendon from TWO directions on a flat plane

17
Q

Multipennate

A

multiples of all pennate forms

18
Q

Circumpennate

A

muscle fibers approach tendon from all directions

19
Q

Tendons are formed by…

A

an aggregation of the sarcolemma

20
Q

Proprioception

A

the sensory aspect of input into the nervous system regarding the status of a muscle at any given time

21
Q

Proprioception provides info for (3):

A
  1. degree of contraction of muscles
  2. state of tension in tendon
  3. sensory information from joints