The Muscular System

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1

The three types of muscle in the body may be identified by all except:

A) function

B) structure

C) elasticity

D) location

C) elasticity

2

The three types of muscle are known as all of the following except

A) skeletal

B) rough

C) smooth

D) cardiac

B) rough

3

Skeletal muscle produces movements of the skeleton and is sometimes called

A) involuntary muscles

B) responsive muscles

C) unresponsive muscles

D) voluntary muscle

D) voluntary muscle

4

The four basic forms of dense connective tissue include all except

A) tendons

B) ligaments

C) aponeuroses

D) fibers

E) fasciae

D) fibers

5

What attaches muscle to bone?

A) ligaments

B) tendons

C) fibers

D) nerves

B) tendons

6

What connects the bones that form joints?

A) tendons

B) ligaments

C) nerves

D) fibers

B) ligaments

7

An example of smooth muscle is the

A) bladder

B) liver

C) heart

D) deltoid

A) bladder

8

The neck is divided into two triangles, anterior and posterior, by the

A) infrahyoid muscle

B) sternocleidomastoid muscle

C) thyrohyoid muscle

D) omohyoid

B) sternocleidomastoid muscle

9

The ______ is a fibrous ban stretching from the xyphoid process to the symphysis pubis.

A) rectus sheath

B) aponeuroses

C) linea semilunaris

D) linea alba

D) linea alba

10

The _____ separates the thorax from the abdominal cavity

A) transversus muscle

B) internal oblique muscles

C) diaphragm

D) external oblique muscles

C) diaphragm

11

The anterior and lateral margins of the true pelvis are formed by all of the following except the

A) diaphragm

B) pubis

C) ischium

D) ilium

A) diaphragm

12

The muscular "sling" is composed of

A) pubis and ischium

B) coccygeus and levator ani

C) perineum and peritoneum

D) Douglas' pouch and retrovesical space

B) coccygeus and levator ani

13

The anterior compartment of the true pelvis contains

A) rectosigmoid muscle

B) perirectal fat

C) the bladder and reproductive organs

D) presacral space

C) the bladder and reproductive organs

14

The anterior pouch of the uterus is called

A) Douglas' pouch

B) uterovesical space

C) rectouterine space

D) broad ligament

B) uterovesical space

15

The fallopian tubes extend laterally from the fundus of the uterus and are enveloped by a fold of peritoneum known as

A) broad ligament

B) round ligament

C) ovarian ligament

D) tubal ligament

A) broad ligament

16

The ______ muscles are symmetrically aligned along the lateral border of the pelvis with a concave medial border

A) pubococcygeus

B) obturator internus

C) obturator externus

D) transversus

B) obturator internus

17

The ______ muscles are rounded, concave muscles that lie more posterior than the obturator muscles

A) obturator externus

B) periformis

C) pubococcygeus

D) cremaster

C) pubococcygeus

18

The posterior border of the ______ lies along the iliopectineal line and may be used as a separation landmark of the true pelvis from the false pelvis

A) ilium

B) ishchium

C) iliac crest

D) iliopsoas

D) iliopsoas

19

Movement is made possible by the development of the property of _________ in muscle tissue.

elasticity

20

Name the three types of muscles that can be identified by their structure, function, and location in the body.

skeletal

cardiac

smooth

21

Which muscles are also called voluntary muscles and have attachments of their ends to bones, cartilage, or ligaments by cords of tough fibrous tissue called tendons?

skeletal muscles

22

The ends of skeletal muscles are attached to bones, cartilage or ligaments by ________.

tendons

23

What are the four basic forms of connective tissue?

tendons

ligaments

aponeuroses

fasciae

24

The tendons attach _______ to ______.

muscle to bone

25

The ligaments connect the ________ that form the ________.

bones

joints

26

_________ are thin tendinous sheets attached to flat muscles.

aponeuroses

27

________ are thin sheets of tissue that cover muscles and hold them in their place.

fasciae

28

Individual fibers of muscle are arranged either _______ or _______ to the long axis of the muscle.

parrallel

oblique

29

What happens to the muscle during contraction?

shorten to 1/2 or 1/3 resting length

30

What muscle group resembles a feather?

Pennate

31

A _______ muscle is one in which the tendon lies along one side of the muscle, and the muscle fibers pass oblique to it.

unipennate

32

A ______ muscle has a tendon in the center, the muscle fibers pass to it from two sides.

bipennate

Ex. Rectus femoris

33

A ______ muscle may have a series of bipennate muscles lying alongside one another.

multipennate

Ex. deltoid

34

What muscle group is composed of long, spindle-shaped cells closely arranged in bundles or sheets?

smooth muscle

Gastrointestinal tract

35

What muscle is found in the myocardium?

cardiac

36

What five pelvic muscles may be useful landmarks in sonography?

transversus

internal oblique

piriformis

coccygeus

levator ani

37

What two neck muscles are identified in the thyroid transverse scans?

suprahyoid

sternocleidomastoid

38

The neck is divided into anterior and posterior triangles by the _________ muscle.

sternocleidomastoid

39

What is the rectus sheath

the rectus sheath is formed by the aponeuroses of the external oblique, internal oblique and the transversus lateral abdominal muscle.

40

What is the purpose of the diaphragm?

Separate the thorax from the abdominal cavity and help with breathing

41

What is the crus of the diaphragm?

The right crus arises from the the sides of the first three lumbar vertebrae

The left crus arises from the the sides of the first two lumbar vertebrae