Myology

Question 1

what are the muscle fibres properties

Answer 1

-contractility: allows to shorten
-muscle tension

Question 2

what are the three types of muscle

Answer 2

-skeletal
-cardiac
-smooth

Question 3

skeletal muscle

Answer 3

-attaches to the skeleton and moves the skeleton
- organized into a strained pattern
-it is under voluntary control

Question 4

what does skeletal muscle consist of

Answer 4

-75% water
-20% protein

Question 5

smooth muscle

Answer 5

-found in. the walls of hollow oragns or blood vessels
-contracticile muscles rent aligned making a smooth appearance
-involunetary control
-multinucleated cell (syncytium)

Question 6

cardiac muscle

Answer 6

-contarctile tissue in heart wall
-both smooth and skeletal characteristics
-straited and under involuntary control as well as multineaclted allowing the movement of blood

Question 7

what are the functions of the skeletal muscle

Answer 7

-produce skeletal ovemtn
-maintain posture
-breathing
-support weight of organs and soft tissues

Question 8

what is the criteria used to name/ identity muscle

Answer 8

-shape
-action
-location
-division
-size relitionship
-direction of fibres

Question 9

what is fascilsi

Answer 9

bundle of muscles

Question 10

what are the two ways the faciscili can arrange itself

Answer 10

-run parallel to long axis of muscle and produce more range of motion but less strength
-insert diagonally into a tendon running the length of the muscle sand produce less range of motion but more strength

Question 11

unipennate

Answer 11

all facsiluni inserted on one side of a tendon
eg: the semibrenansos

Question 12

bipennate

Answer 12

faculini insert both sides of tension
eg: rectus femoris

Question 13

multipennate

Answer 13

convergance of several tendons
eg: deltoids

Question 14

advantage and disadvantage of a pennate muscle

Answer 14

since going into tendon less range of motion but greater strength

Question 15

what are the three parts called that allow a muscle to move

Answer 15

-prime mover
-antagonist
-fixators/stabalizers

Question 16

antagonist movers function

Answer 16

muscle that opposes one another upon contraction (located on opposite sides of joints)

Question 17

prime movers function

Answer 17

-muscle that contacts only for movements

Question 18

fixtaors/stabilizers function

Answer 18

muscles that immobilize a bone or joint near the origin near the prime over s the prime mover can act more effenciantly

Question 19

location and movement of origin

Answer 19

proximal and less movable

Question 20

location and movement of insterion

Answer 20

more movable and distal

Question 21

location and movement of belly

Answer 21

widest portion between insertion and origin

Question 22

what is the exceptions of insertions In the body

Answer 22

doesn’t insert on the bone everywhere on the face its the skin

Question 23

name three layers for intramsuclar pressure

Answer 23

• episyium (whole muscle)
  -perysium (bundles of muscle fibres
  -endosyium (muscle fibres)