Muscle & Nervous Tissue

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Flashcards for the muscle and nervous tissue sections of chapter 4
updated 6 years ago by shadysmainlady
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1

highly cellular, well vascularized tissues that are responsible for most types of body movement

muscle tissue

2

muscle cells possess _________, elaborate versions of the actin and myosin filaments that bring about movement or contraction in all cell types

myofilaments

3

what are the 3 types of muscle tissue?

1. skeletal
2. cardiac
3. smooth

4

skeletal muscle tissue is packaged by connective tissue sheets onto organs called ___________.

skeletal muscles

5

long, cylindrical cells containing many peripherally located nuclei

skeletal muscle cells (aka skeletal muscle fibers)

6

cardiac muscle is found _______

in the walls of the heart

7

which 2 muscle cells types are striated?

skeletal and cardiac

8

cardiac muscle cells have one _______ that is centrally located

nucleus

9

cardiac cells have a unique look described as __________

branching

10

cardiac cells fit together at unique junctions called ___________

intercalated discs

11

a muscle type with no visible striations

smooth muscle

12

smooth muscle is found in...

the walls of hollow organs (excluding the heart)
(i.e. digestive & urinary tract organs, uterus and blood vessels)

13

because skeletal muscle movement is under our conscious control it is referred to as _____________ movement

voluntary

14

cardiac and smooth muscle movement is classified as ____________, as we do not have conscious control over them

involuntary

15

regulates and controls body functions

nervous tissue

16

nervous tissue contains 2 major cell types

1. neurons
2. supporting cells

17

highly specialized nerve cells that generate and conduct nerve impulses

neurons

18

the neuron's branching cytoplasmic extensions enable them to...

1. respond to stimuli
2. transmit electrical impulses over substantial distances in the body

19

what is the name of the extension or process that allows neurons to respond to stimuli?

dendrites

20

what is the name of the process that allows neurons to transmit electrical impulses?

axons

21

list the 3 functions of the nonconducting, supporting cells

1. support
2. insulate
3. protect delicate neurons