part 4 (muscles and nervous tissue)

what is the location of skeletal

attached to bones

what is the location of cardiac

in the heart

what is the location of smooth

in the walls of hollow organs, blood vessles. eyes, glands, skin

what is the cell shape of skeletal

very long, cylindrical cells (1-4 cm and may extend the entire length of the muscle, 10-100 micrometer in diameter)

what is the cell shape of cardiac

cylindrical cells that branch (100-500 micrometers in length, 12-20 micrometers in diameter)

what is the cell shape of smooth

spindle-shaped cells (15-200 micrometers in length, 5-8 micrometers in diameter)

what is the nucleus of skeletal

multinucleated, peripherally located

what is the nucleus of cardiac

uninucleated, centrally located

what is the nucleus of smooth

uninucleated, centrally located

what is the striations of skeletal

yes

what is the striations of cardiac

yes

what is the striations of smooth

no

what is the control of skeletal

voluntary (conscious)

what is the control of cardiac

involuntary (unconscious)

what is the control of smooth

involuntary (unconscious)

what is the ability to contract spontaneously of skeletal

no

what is the ability to contract spontaneously of cardiac

yes

what is the ability to contract spontaneously of smooth

yes

what is the function of skeletal

moves the body

what is the function of cardiac

provides the major force for moving blood through the blood vessels

what is the function of smooth

moves food through the digestive tract, empties the urinary bladder, regulates blood vessel diameter, changes pupil size, contracts many gland ducts, moves hair, performs many other functions

what are the special features of skeletal

none :(

what are the special features of cardiac

branching fibers, intercalated disks containing gap junctions joining the cells to each other

what are the special features of smooth

gap junctions

3 types of muscle tissue:

• Skeletal muscle

• Cardiac muscle

• Smooth muscle

“muscle”, “meat” - 40% of a persons’s body weight

skeletal

Movement by pulling on bones

skeletal

Actin and myosin

skeletal

conducting cells by action potential

Neurons:

- Very long nervous tissue is called

nerve fibers

what are the part of nervous tissue / neuron

- Parts:

‣ cell body: contains nucleus

‣ dendrites: root-like extensions that receive stimuli

‣ Axons: long thin extensions that transmit impulse

contains nucleus

‣ cell body:

root-like extensions that receive stimuli

‣ dendrites:

long thin extensions that transmit impulse

‣ Axons:

supporting cells.

- Neuroglia:

- makes up brain, spinal cord, and nerves

Nervous Tissue

- Is the most highly organized tissue of the body

Nervous Tissue

- Controls and coordinates body activities

Nervous Tissue

- Allows perception

Nervous Tissue

- Controls emotion and reasoning

Nervous Tissue

- Stores memories

Nervous Tissue

what are the two types of neurons?

multipolar neuron

pseudo-unipolar neuron

what type of neuron is this?
structure: the neuron consists of dendrites, a cell body, and a long axon; neuroglia, or support cells, surround the neurons

multipolar neuron

what type of neuron is this?
function: neurons transmit information in the form of action potentials, store “information”, and integrate and evaluate data; neuroglia support, protect, and form specialized sheaths around axons

multipolar neuron

what type of neuron is this?

location: in the brain, spinal cord, ganglia

multipolar neuron

what type of neuron is this?
structure: the neuron consists off a cell body with one axon

pseudo-unipolar neuron

what type of neuron is this?
function: conducts action potentials from the periphery to the brain or spinal cord

pseudo-unipolar neuron

what type of neuron is this?
location: in ganglia outside the brain and spinal cord

pseudo-unipolar neuron

is the response that occurs when tissues are damaged

inflammation

TRUE OR FALSE: Inflammatory phase is similar — regardless of cause

true

what are the five major manifestations of inflammation (cardinal signs)

rubor - redness

calor - heat

tumor - swelling

dolor - pain

function laesa - disturbed function

is the substitution of viable cells for dead cells

tissue repair

tissue repair can occur by _____ and _____

regeneration and replacement

the new cells are the same type as those that were destroyed and normal function is usually restored

regeneration

a new type of tissue develops, which eventually produces a scar and causes the loss of some tissue function

replacement

tissue repair by _______ occurs when the edges of the wound are close together

primary union

_________ occurs when the edges are far apart

secondary union