Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

anatomy lab > ch 10 muscle > Flashcards

ch 10 muscle Flashcards

1
Q

Properties of muscle tissue

A

excitability(reactive to stimuli, generates electrical/mechanical response), contractility(cells shorten upon stimulation, creating tension),
extensibility(cells lengthen when pulled),
elasticity(reboud/recoil to a resting length after contract or extension)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

types of muscle tissue

A

skeletal, cardiac, smooth

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

description of skeletal muscle tissue

A

long, cylindrical, mutinucleate, obvious striations(marked by multiple stripes/bands)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

function of skeletal muscle tissue

A

voluntary movement, locomotion, manipulation of enviro, facial expression, voluntary control

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

location of skeletal muscle tissue

A

in skeletal muscles attached to bones or occasionally to skin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Description of cardiac muscle tissue

A

branching, striated, uninucleate cells. interdigitate at specialized junctions(intercalated discs)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

function of cardiac muscle tissues

A

as it contracts, it propels blood into ciruclation. involuntary control

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

location of cardiac muscle

A

the walls of the heart

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

description of smooth muscle tissue

A

spindle shaped cells w central nuclei, no striations. cells arranged closely to make sheets

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

functions of smooth muscle tissue

A

propels substances of objects (foodstuff, urin, baby) alone internal passageways. involuntary control

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

location of smooth muscle tissue

A

walls of hollow organs

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

similarities and differences of skeletal and cardiac muscle tissue

A

similarities: visible striations

differences:
skeletal have elongated cells, multiple peripheral nuclei, voluntary
cardiac have branching cells, single central nucleus, involuntary

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

skeletal muscle and smooth muscle tissue similarities and difs

A

no similarities

difs:
skeletal has elongated cells, mult periph nuclei, visible striations, voluntary
smooth has spindle shape cells, single nuclei, lack visible striations, involunt

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

cardiac muscle tissue vs smooth muscle tissue similarities and difs

A

similarities: single central nuc, involuntary

difs:
cardiac has branching cells and visible striations,
smooth has spindle shaped and no visible striations

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Functions of skeletal muscles

A

skeletal movement
maintain posture
support soft tissues
guard entrances and exits
maintain body temp
storage of organic molecules(glucose and amino acids)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

muscle bands that regulate passage of material and where are they located

A

sphincter, orifices

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

organizational levels of skeletal muscle

A

muscle> fascicle> muscle fiber> myofibril > myofilaments

18
Q

connective tissue covering for each organizational level of skeletal muscle

A

muscle- Epimysium (EPEN)for remembering
fascicle- Perimysium
muscle fiber- ENdomysium
myofibril - none
myofilaments- none

19
Q

what can tendons become that is a thin flattened sheet

A

aponeurosis

20
Q

what type of muscles are skeletal muscles

A

voluntary mucles bc controlled by somatic nervous system

21
Q

axon

A

long nerve fiber that branches at terminal and exxtends thru all 3 conn tiss layers almost reaching to muscle fiber. innervates skeletal muscle fibers

22
Q

neuromuscular junction

A

gap between axon and muscle fiber

23
Q

neuromuscular junction

A

gap between axon and muscle fiber

24
Q

what gives muscle fibers their striations

A

alternating arrangements of thin and thick muscle fibers in the myofibril

25
Q

Protein in thin myofiliments

A

Actin (main protein)
Z-LINE (holds ends together)
Tropomyosin
Troponin

26
Q

Protein in thick microfiaments

A

Myosin (main)
M-Line (held together by)

27
Q

sarcomeres and what do they contain

A

the functional contractile unit of skeletal muscle fiber. contains thin and thick filaments

28
Q

what connects sarcomeres together and forms as anchors for thin filaments

A

z discks.

29
Q

what is the myofibril surrounded by and what does it consist of

A

sarcoplasmic reticulum, consists of sarcomeres

30
Q

variable factors of skeletal muscles

A

size, speed, amount of force, endurance

31
Q

types of fibers

A

type 1 fibers - slow, oxidative
type 2b fibers- fast glycolic
type 2a fibers- fast, oxidative

32
Q

type 1 fibers

A

slow, oxidative. small, slow, red, good at aerobic metabolism, low force generation

33
Q

type 2b fibers

A

fast, glycolic.
big, fast, white, good at anaerobic, high force gen

34
Q

type 2a fibers

A

fast, oxidative. medium size, fast contracting but slightly fatigue resistant, med force gen

35
Q

what is a pennate tendon

A

where muscle fibers are attached to tendon at an oblique angle

36
Q

types of pennate muscle

A

unipennate(exntensor digitorum), bipennate(rectus femoris), multipennate(deltoid)

37
Q

how is cardiac muscle dfi

A

no fascicles, electronically connected with other cardiac muscles

38
Q

intercalated discs

A

special connects in cardiac muscle that contain ion channels to allow electrical activity to spread easily from cell to cell

39
Q

what causes the hear to beat

A

ion channels spread electrical activity from cell to cell in cardiac muscles allowing to hear to contract all of its muscles in near unison

40
Q

smooth muscle functional characteristics

A

contraction cuases shortening AND twisting
contraction is slow, smooth, fatigue resistant
contraction is involuntary

41
Q

smooth muscle structural characteristics

A

1cell is spindle shaped and has one nuc
2actin and myosin not in sarcomere of myofibs
-actin attached to dense bodies and myosin scattered in cell
3little, SR, no Ttubules,
4adjacent cells bound togeth and electrically coupled

anatomy lab (10 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions