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Anatomy
Tissues, Muscles, Cardiovascular System. Lymphatic System, Respiratory System, and DIgestive System
111
Biology
12th Grade
12/10/2011

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Term
Tissue
Definition
a group of similar cells that perform a common function
Term
matrix
Definition
nonliving intercellular material
Term
epithelial tissue
Definition
found either covering structures or lining spaces and used for a secretion
Term
membranous epithelium
Definition
covers the body and some of its parts; lines the serous cavities; ex. blood, lymphatic vessels, respiratory system, and digestive system
Term
glandular epithelium
Definition
secretes a product ex. adrenal glands, pancreas
Term
basement membrane
Definition
a glue that holds the epithelial cells onto the tissues that exist below them
Term
avascular
Definition
does not have blood in between the cells
Term
squamous cells
Definition
flat, thin cells found where a lot of exchange takes place; ex. blood vessels, mesothelium
Term
cuboidal cells
Definition
1 layer of cube shape cells; ex. glands and ducts
Term
columnar cells
Definition
1 layer of column-shaped cells; modified for some tasks; lines hollow visceral cells; ex. goblet cells, cilia, microvilli
Term
pseudo-stratified cells
Definition
here, it looks like there are layers of cells but there are actually not; they have cilia and move substances place to place
Term
stratified squamous
Definition
classified based on surface cells; multiple cells; gives extra protection; found in places where there is abrasion (like the skin)
Term
transitional epithelium
Definition
stretching and relaxing tissue; found in lining of stomach and bladder
Term
lumen
Definition
a reference to space inside a structure such as arteries, tubules, and digestive tracts
Term
epidermis
Definition
contains epithelial tissue (specifically stratified squamous)
Term
dermis
Definition
combination of many types of tissue
Term
connective tissue
Definition
predominant feature is extracellular matrix, extracellular matrix determines its physical characteristics and can be fluid, solid, or gelatinous and can have fiber or no fibers
Term
osteocytes
Definition
mature, inactive bone cells existing in solid matrix space called lacuna
Term
compact bone
Definition
make up shaft of long bone (like the femur)
Term
osteons
Definition
functionial units of compacy bones made up of osteocytes
Term
osteoblasts
Definition
active bone-forming cells; they BUILD BONES
Term
osteoclasts
Definition
bone-destroying cells; they KILL BONES
Term
red marrow
Definition
found in the spongy, cancellous bone; responsible for blood cell formation
Term
hematopoietic tissue
Definition
blood stem cells turn into different types of blood cells
Term
cartilage
Definition
a connective tissue that only contains chondrocytes
Term
hyaline
Definition
most common type, ends of long bones, helps one bone move past another relatively seamlessly
Term
fibrocartilage
Definition
intervertabral disc, in the pubic bone
Term
Skeletal: striated voluntary
Smooth: nonstriated involuntary
Cardiac: the heart, striated involuntary
Definition
What are the 3 types of muscles? How can they be differentiated between?
Term
Skeletal muscles
Definition
this type of muscle is made up of fibers and have many nuclei per fiber
Term
Smooth muscles
Definition
in this type of muscle cell, nuclei are found in particular spindle shaped muscle cells
Term
Cardiac muscles
Definition
In this type of muscle, contractions are not as strong as in skeletal muscles
Term
nervous tissue
Definition
this helps regulate and integrate the body activities and coordinate how 1 system is functioning based on how another system is
Term
excitable
Definition
1 of the qualities of nervous tissue, this means it is able to respond to stimulus
Term
conductivity
Definition
one of the qualities of nervous tissue, this means that it is able to generate change to bring information from 1 place to the next
Term
neuron
Definition
the conducting unit of the cell
Term
axon
Definition
transmits nerve impulse away from the cell body to effector cell (tells what to do next)
Term
dendrites
Definition
transmits nerve impulse toward cell body and axon, pickup information and bring to cell body
Term
neuroglia (glial cells)
Definition
special connecting, supporting, coordinating cells that surround neurons
Term
arteries
Definition
carry blood away from the heart
Term
veins
Definition
carries blood towards the heart
Term
pericardial sac
Definition
this is where the heart sits in the thorastic cavity
Term
pulmonary trunk
Definition
this receives blood from the right ventricle and carries blood away form the heart and then divides into the right and left pulmonary arteries
Term
vena cava
Definition
this is how blood enters the heart from the body
Term
pulmonary arteries
Definition
these carry blood from the heart towards the lungs
Term
aorta
Definition
the largest artery in the body, this distributes blood to the body as a whole
Term
pulmonary circuit
Definition
blood flow, from heart to lungs and back
Term
systemic circuit
Definition
blood flow that originates in the heart (left ventricle) and goes to the right atrium (it is a much longer circuit)
Term
vessels of circulation
Definition
collection of tissues that distribute blood where it needs to go; 3 layers: outer [fibrous connective tissue], middle [muscular layer], inner [endothelium, simple squamous]
Term
capillary
Definition
purpose is diffusion and exchange of materials-come back together into venules, forming veins
Term
capillary
Definition
purpose is diffusion and exchange of materials-come back together into venules, forming veins
Term
valves
Definition
help direct blood flow, prevent blood from flowing backwards
Term
cardiovascular system
Definition
this system's purpose is to transport materials and wastes to where they need to be taken to be gotten rid of; important in maintaining homeostasis of internal temperature
Term
closed circulatory system
Definition
this system is found in analids and phylum cordata where all of the blood vessels ultimately wind up getting back to the pump
Term
open circulatory system
Definition
in this system fluid does not stay contained within the vessels but sucks fluid from the body cavity; found in arthropods and mollusca
Term
Cardiac Conduction System
Definition
the system that exists within the heart involved in regulating heart rate or heart bear under unconscious control
Term
Endocrine System
Definition
releases a hormone called epinephrin found in the adrenal glands
Term
epinephrin
Definition
the formal name for adrenaline
Term
SA node
Definition
modified cardiac muscle tissue and has conductive nervous tissue; has its own intrinsic rhythm.
Term
AV node
Definition
picks up signal generated by SA node and relays impulse along more modified cardiac muscle tissues through bundle brandles and Purkinje fibers
Term
erythrocytes
Definition
red blood cells, tons of hemoglobin
Term
leukocytes
Definition
white blood cells-much larger than red cells, tons of lysosomes if in phagocytosis
Term
platelets
Definition
cell fragments; cells within bone marrow apoptose and become these
Term
lymph nodes
Definition
structures that lymphatic vessels empty into
Term
sinuses
Definition
reference to spaces in skull where fluid is collected
Term
red pulp
Definition
one region of the spleen, blood empties into particular region of the stream
Term
white pulp
Definition
one region of the spleen, densely packed white blood cells become mature
Term
sarcolemma
Definition
cell/plasma membrane of muscle fibers
Term
t-tubules
Definition
network of tubules and sacs found within muscle fibers; from sarcolemma
Term
sarcoplasmic reticulum
Definition
sequesters calcium ions from the sarcoplasm using a lot of ATP
Term
epimysium
Definition
outermost layer of the muscle; primarily connective tissue
Term
perimysium
Definition
goes around individual bundles of muscle fibers; nervous and vascular tissue here
Term
endomysium
Definition
keeps muscle cells separated from each other
Term
myofibrils
Definition
giant chains of protein that make up the bulk of the interior of a muscle cell and run entire length of the muscle cell
Term
tropomyosin
Definition
protein that blocks the active sites (where myosin can cross bridge) on actin molecules
Term
troponin
Definition
protein that hold tropomyosin molecules in place
Term
synapse
Definition
the area of communication between as well as the neuron membrane
Term
glottis
Definition
opening of the trachea
Term
glottis
Definition
opening of the trachea
Term
vocal folds
Definition
cartilages that vibrate when sound passes through them
Term
bronchi
Definition
branches of the trachea; bring air to specific lung
Term
bronchioles
Definition
subdivisions of the bronchi
Term
aveoli
Definition
clusters of bronchioles at bottom of lungs
Term
inspiration
Definition
bringing air into lungs
Term
expiration
Definition
getting air to leave the lungs
Term
pharynx
Definition
a passageway for the air
Term
larynx
Definition
the beginning of the windpipe; vocal folds are found here
Term
epiglottis
Definition
separates the digestive tract from the respiratory tract. The only time the trachea is closed off is when this closes
Term
trachea
Definition
a tubular structure (the windpipe) that is permanently held open by rings of cartilage that allows for free passage of air without obstruction
Term
pneumonia
Definition
alveoli fill with pus and fluid, making gas exchange difficult
Term
tuberculosis
Definition
lungs secrete substances to encapsulate better, the alveoli become less elastic and compliant
Term
tuberculosis
Definition
lungs secrete substances to encapsulate better, the alveoli become less elastic and compliant
Term
asthma
Definition
airways are always inflamed due to irritation and bronchioles constrict due to muscle spasms
Term
emphysema
Definition
pulmonary disorder caused by infection; alveoli have stretched out and burst; reduced gas exchange ability; heart has to work way harder
Term
incomplete tract
Definition
has one opening and is usually called the mouth (all purpose opening used for ingestion and elimination) found in flatworms, jellyfish, etc
Term
complete tract
Definition
sometimes referred to as "tube-within-a-tube" system, 2 openings (mouth & anus) and is closed off from rest of body; humans have this
Term
continuous feeders
Definition
aka filter feeders, water is continuously moving in through mouth or other opening
Term
discontinuous feeders
Definition
ingest food periodically as opposed to continuously; have storage area for food so that digestion happens more gradually
Term
herbivores
Definition
eat only plants
Term
omnivores
Definition
eat plants and animals
Term
carnivores
Definition
eat only meat
Term
mechanical digestion
Definition
physical breakdown of food into smaller particles
Term
chemical digestion
Definition
chemical breakdown of macromolecules in food into their individual monomers
Term
mouth
Definition
aka oral cavity; here food enters body
Term
lips and cheeks
Definition
keep food inside mouth after it has entered
Term
palate
Definition
roof of mouth; separates nasal from oral cavity; tongue pushes against this to flatten food
Term
uvula
Definition
helps to prevent food from entering nasal cavity when swallowing
Term
teeth
Definition
grind and tear food
Term
tongue
Definition
manipulate food to facilitate mechanical breakdown
Term
salivary ducts
Definition
in mouth, contain fluid and enzyme called salivary amylase; begins chemical breakdown
Term
bolus
Definition
mass of chewed food that has been mixed with saliva and is ready to be swallowed
Term
duodenum
Definition
first portion of small intestine, here nutrient breakdown is completed
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