MUSCLE TISSUE

Question 1

Composed of cells specialized for contraction.

Answer 1

Muscle Tissue

Question 2

Muscle is classified into three types according to their structure
and function.

Answer 2

Cardiac muscle, smooth muscle, skeletal muscle

Question 3

Muscle tissue is made up of cells called

Answer 3

myocytes or muscle fibers

Question 3

This contraction result in movement.

Answer 3

Muscle Tissue

Question 3

striated, voluntary control

Answer 3

Skeletal muscle cells

Question 3

striated, involuntary control

Answer 3

Cardiac muscle cells

Question 4

nonstriated, involuntary control

Answer 4

Smooth muscle cells

Question 4

Skeletal and cardiac muscle cells are called _____ because they show an alternating series of bands.

Answer 4

striated

Question 5

The repeating arrangement of their basic contractile unit, the ______, produces
these striations.

Answer 5

sarcomere

Question 6

In all types of muscle, contraction is caused by the movement of _______ along _______.

Answer 6

myosin filaments, actin
filaments

Question 7

are the two main types of protein filaments that work together to help muscles contract.

Answer 7

Myosin and actin filaments

Question 8

Attached to skeleton

Answer 8

Skeletal Muscles

Question 9

Aid in voluntary movement

Answer 9

Skeletal Muscles

Question 10

Fatigue more rapidly than
other muscles

Answer 10

Skeletal Muscles

Question 10

are called striated
muscles because when we observed this skeletal
muscles under the microscope they have a
striped like appearance

Answer 10

Skeletal muscles

Question 11

_____ is present in the limbs and body wall.
Because of its close relationship to the bony skeleton this
variety is called _______.

Answer 11

Skeletal muscles

Question 12

SKELETAL MUSCLE total body weight

Answer 12

40%

Question 13

SKELETAL MUSCLE nucleus

Answer 13

Multinucleate

Question 14

SKELETAL MUSCLE capillary plexus

Answer 14

Rich

Question 15

SKELETAL MUSCLE nerve supply

Answer 15

somatic

Question 16

SKELETAL MUSCLE contraction

Answer 16

voluntary

Question 17

SKELETAL MUSCLE location

Answer 17

limbs and trunk

Question 18

FUNCTIONS OF SKELETAL MUSCLE: It has the ability to shorten and thicken.

Answer 18

Contraction

Question 19

FUNCTIONS OF SKELETAL MUSCLE: The skeletal muscle can be stretched by a
weight, when the weight is removed, muscle returns
to its normal length.

Answer 19

Elasticity

Question 20

FUNCTIONS OF SKELETAL MUSCLE: Maintenance of ___

Answer 20

posture

Question 21

Found only in heart and tips of blood vessels

Answer 21

Cardiac Muscle

Question 22

Do not fatigue

Answer 22

Cardiac Muscle

Question 23

Controlled by central nervous system and “pacemaker” cells.

Answer 23

Cardiac Muscle

Question 24

Cardiac Muscle Controlled by

Answer 24

central nervous system and “pacemaker” cells

Question 25

Functions of cardiac muscle

Answer 25

Involuntary heart movement Pumping blood

Question 26

cardiac muscle location

Answer 26

myocardium

Question 27

cardiac muscle nucleus

Answer 27

single nucleus

Question 28

cardiac muscle location

Answer 28

myocardium

Question 29

cardiac muscle capillary plexus

Answer 29

extremely rich

Question 30

cardiac muscle nerve supply

Answer 30

ANS (Autonomic Nervous System)

Question 31

cardiac muscle contraction

Answer 31

involuntary

Question 32

Maintain flow of fluids along tissue walls

Answer 32

Smooth muscles

Question 33

Fatigue slowly

Answer 33

Smooth muscles

Question 34

Found in lungs, stomach, esophagus, and intestines.

Answer 34

Smooth muscles

Question 35

Smooth muscle is also sometimes known as _______ due to our inability to control its movements, or _____ as it does not have the stripy appearance of Skeletal muscle.

Answer 35

Involuntary muscle, non striated

Question 36

Smooth muscle is found in the walls of hollow organs such as as the

Answer 36

Stomach, Esophagus, Bronchi and in the walls of blood vessels

Question 37

Smooth Muscle Structure:

Answer 37

shorter cells one nucleus per cell No visible striations

Question 38

Smooth Muscle Location:

Answer 38

walls of hollow organ Ex: Stomach, intestine, Bladder, uterus, Blood vessels

Question 39

Smooth Muscle Function

Answer 39

Involuntary movement Peristalsis- Wave-like movement

Question 40

pushes food through digestive system

Answer 40

Peristalsis- Wave-like movement

Question 41

is specialized for the rapid communication of information from one region of the body to another.

Answer 41

Nervous system

Question 42

Nervous system is divided anatomically into two major components:

Answer 42

Central nervous system (CNS) and Peripheral nervous system (PNS)

Question 43

consists of the brain and spinal cord

Answer 43

Central nervous system (CNS)

Question 44

peripheral nerves and ganglia

Answer 44

Peripheral nervous system (PNS)

Question 45

Nervous system is divided functionally into two major components:

Answer 45

1.Somatic nervous system 2. Autonomic nervous system

Question 46

conscious voluntary movements

Answer 46

Somatic nervous system

Question 47

regulates the functions of internal organs

Answer 47

Autonomic nervous system

Question 48

Autonomic nervous system – regulates the functions of internal organs - further divided into two subdivisions:

Answer 48

-Sympathetic nervous system -Parasympathetic nervous system

Question 49

are responsible for sending and receiving messages.

Answer 49

NEURONS

Question 50

is the structural and functional unit of the nervous system.

Answer 50

NEURON

Question 50

provide support and nutrients to neurons

Answer 50

NEUROGLIA

Question 51

-provide support and protection in the CNS. (Oligodendrocytes, Astrocytes, Ependymal cells, and Microglia) -PNS (Schwann cells and satellite cells).

Answer 51

Non-neural cells

Question 52

are the largest and most abundant type of neuroglial cell found in the central nervous system.

Answer 52

Astrocytes (star cells)

Question 53

Have multiple long cellular extensions radiating out from a central cell body giving them a star-like or spider-like appearance.

Answer 53

ASTROCYTES

Question 54

ASTROCYTES function

Answer 54

Help form the blood brain barrier around capillaries in the central nervous system

Question 55

Help form the blood brain barrier around capillaries in the central nervous system

Answer 55

ASTROCYTES

Question 56

are the largest and most abundant type of neuroglia found in the central nervous system.

Answer 56

Astrocytes

Question 57

have multiple, long cellular extensions radiating out from a central cell body giving them a star like or spider like appearance

Answer 57

Astrocytes

Question 58

the _______ also create a vast mesh like framework that provides physical support for neurons and other neuroglia in the CNS

Answer 58

interwoven cellular extensions of astrocytes

Question 59

also help stabilize damaged CNS tissue after injury and help guide the growth of neurons during embryonic development

Answer 59

astrocytes

Question 60

Smaller, have fewer and shorter processes than astrocytes.

Answer 60

Oligodendrocytes

Question 61

Scanty cytoplasm, nucleus is ovoid or spherical is smaller.

Answer 61

Oligodendrocytes

Question 62

Oligodendrocytes LOCATION:

Answer 62

White matter of the CNS

Question 62

This is a small, dark cell. Distributed throughout the CNS

Answer 62

Microglia cell

Question 63

Processes fewer than those of the astrocyte, spiny and much more delicate.

Answer 63

Microglia cell

Question 64

Nuclei are small, and elongated. Contains many lysozymes.

Answer 64

Microglia cell

Question 65

Microglia become _____ when cellular debris is present.

Answer 65

phagocytes

Question 66

Cuboidal cells that possess short cilia and microvilli.

Answer 66

Ependymal Cells (Ependymocytes)

Question 67

Comprise the simple cuboidal epithelium that lines the cavities of the CNS.

Answer 67

Ependymal Cells (Ependymocytes)

Question 68

Form secretory epithelial lining of the choroid plexus that secretes CSF.

Answer 68

Ependymal Cells (Ependymocytes)

Question 69

Are glial cells of the peripheral nervous system (PNS) that form the myelin sheath around axons, insulating and supporting nerve fibers, and are crucial for nerve regeneration.

Answer 69

Schwann cells

Question 70

Schwann cells location

Answer 70

They are found in the PNS, which includes all nerves outside the brain and spinal cord.

Question 71

is the portion of the central nervous system responsible for carrying motor (efferent) commands from the brain to most body regions and sensory (afferent) information from most areas of the body up to the brain.

Answer 71

Spinal Cord

Question 71

comprised mainly of myelinated axons and the gray matter of the spinal cord contains large numbers of neuron cell bodies and unmyelinated axons