Chapter 11 Flashcards Preview

Human Anatomy > Chapter 11 > Flashcards

Flashcards in Chapter 11 Deck (13):
1

The fascicles are parallel to the long axis of the muscle.

Parallel Muscle

2

The muscle fascicles extending over a broad area converge on a common attachment.

Convergent Muscle

3

The fascicles form a common angle with the tendon.

Pennate Muscle

4

The fascicles are concentrically arranged around an opening or a recess.

Circular Muscle/Sphincter

5

A rigid structure - such as a board, a crowbar, or a bone - that moves on a fixed point called the fulcrum.

Lever

6

The point on which a lever is fixed. Each joint is one of these.

Fulcrum

7

In a skeletal muscle, the point of attachment which does not change position when the muscle contracts; usually defind in terms of movements from the anatomical position.

Origin

8

A point of attachment of a muscle; the end that is easily movable.

Insertion

9

A muscle responsible for a specific movement.

Agonist/Prime Mover

10

A muscle that opposes the movement of an agonist.

Antagonist

11

A muscle that assists a pine mover in performing its primary action.

Synergist

12

A type of synergist that assists an agonist by preventing movement at another joint and thereby stabilizing the origin of the agonist.

Fixator

13

The formation of fibrous connective tissue; in muscles, the replacement of muscle tissue by fibrous connective tissue makes muscles weaker and less flexible.

Fibrosis