lecture 11 muscles of the body

Question 1

• produces movements
• general principles of leverage
• muscle act with or against each other
• criteria used in naming muscles

Answer 1

skeletal muscles of the body

Question 2

• origin of the muscle is broad

- fascicles converge toward the tendon of insertion

Answer 2

convergent

Question 3

fascicles run parallel to the long axis of the muscle

-two types ; straplike (sternocleomastoid) and fusiform (biceps bronchi)

Answer 3

parallel

Question 4

types of fascicle arrangment

Answer 4

unipennate, bipennate, multipennate

Question 5

fascicles insert into one side of the tendon

Answer 5

unipennate

Question 6

fascicles insert into the tendon from both sides

Answer 6

bipennate

Question 7

fascicles insert into one large tendon from all sides

Answer 7

multipennate

Question 8

fascicles are arranged in concentric rings

• surround external body openings
• sphincters

Answer 8

circular

Question 9

has major responsibility for a certain movement

Answer 9

prime mover

Question 10

opposes or reverses a movemnt

Answer 10

antagonist

Question 11

helps the prime mover

Answer 11

synergist

Question 12

a type of synergist that holds a bone firmly in place

Answer 12

fixator

Question 13

squeeze food into the esophagus

Answer 13

pharyngeal constrictors

Question 14

-largest of deep back muscles
1 iliocostalis
2. longissimus
3. spinalis

Answer 14

erector spinal group

Question 15

• deep muscles used for providing movements for breathing

- lift the rib cage

Answer 15

external intercostal muscles

Question 16

-aid expiration during heavy breathing

Answer 16

internal intercostal muscles

Question 17

-most important muscle of respiration

Answer 17

diaphragm

Question 18

a strong flat sheet of fibrous connective tissue that serves as a tendon to attach muscles to bones or as fascia to bind muscles together or to other tissues at their origin or insertion

Answer 18

aponeurosis

Question 19

feeling internal structures through the skin
-living anatomy provides important information about palpation of arterial pulses, skeleton, muscles, and blood vessels, sounds of the heart and lungs, where to give injections

Answer 19

palpation

Question 20

• superciliary arches
• external occipital protuberance
• mastoid process
• termporalis muscle
• frontalis muscle

Answer 20

selected structures felt through the skin

Question 21

also called Adams apple

Answer 21

laryngeal prominence

Question 22

inferior to the laryngeal prominence

Answer 22

cricoid cartilage

Question 23

depression in the superior part of the sternum

Answer 23

jugular notch

Question 24

most prominent neck muscle

Answer 24

sternocleidomastoid

Question 25

posterior aspect of the neck

Answer 25

trapezius

Question 26

white line extending from xiphoid process to the pubic symphysis

Answer 26

linea alba

Question 27

linea semilunaris ; lateral margin of

Answer 27

rectus abdominis

Question 28

vertical groove along the midline

• spinous process of vertebrae
• spine of the scapula

Answer 28

posterior median furrow

Question 29

where armpit hair grows

Answer 29

base of the axilla

Question 30

axillary lymph nodes and blood vessels

Answer 30

deep to the axilla

Question 31

pectoralis major

Answer 31

anterior axillary fold

Question 32

latissimus dorsi and teres major

Answer 32

posterior axillary fold

Question 33

lateral end of the spine of the scapula

Answer 33

acromion

Question 34

covers greater tubercle of the humerus

Answer 34

deltoid muscle

Question 35

runs along the medial epicondyle of the humerus

Answer 35

ulnar nerve

Question 36

forms anterior surface of forearm

Answer 36

cubital fossa

Question 37

diamond shaped hollow on posterior knee

Answer 37

popliteal fossa