midterm half Flashcards
disease characterized by tremors and muscle stiffness
Parkinson’s disease
simplest act of the nervous system
reflex
degeneration of the muscles due to lack of use
atrophy
steroids are produced by ______
adrenal glands
enlargement of muscles due to exercise
hypertrophy
chemical processes of the body
metabolism
body’s main source of energy; the most important energy-producing compounds in the cell
carbohydrates
largest percentage of the blood is ____
plasma
principle organ of the nervous system
brain
the brain and spinal cord make up the _________
central nervous system
true or false: neurons rarely reproduce
true
inability of the muscles to move
paralysis
what controls complex muscle coordination
cerebellum
states that a person’s actions are completely due to particular stimuli
behaviorism
tough rubbery tissue that cushions joints
cartilage
most common respiratory illness
common cold
largest and strongest muscles of the body
gluteus maximus
nonliving material surrounding cells
matrix
hormone that controls metabolism
thyroxine
thick horizontal underground stem
rhizome
protective covering for the tip of a root
root cap
hairlike structures that take the place of roots in mold
rhizoids
largest of the brown algae
kelp
transfer of pollen from the stamen to the pistil
pollination
reproductive cells
gametes
union of the sperm and egg cells
fertilization
fruit that is fleshy and juicy throughout
berry
fruit of the grass family
grain
period of inactivity (specifically for a plant)
dormancy
growth in length is called _____
primary growth
older inner wood of a tree that is only used for support
heartwood
special stem used for defense and protection
thorn
one way diffusion through a semi-permeable membrane
osmosis
plants that produce seeds but do not produce flowers; their seeds are not covered by the walls of an ovary
gymnosperms
occurs when both sexual and asexual reproduction occur
alternation of generations
smallest of the green, chlorophyll containing organisms
algae
things that obtain nutrients from dead organisms are called
saprophytes
organism that lives on or in an other living organism and derives its nutrition from that organism
parasite
a group of structures that function together as a unit to perform a definite job for the body
system
the system of the body that is its defense against foreign invaders
immune system
system that provides support and rigidity for the body
skeletal system
system responsible for the continuation of the human race
reproductive system
tissue that connects bone to bone
ligaments
largest bone of the body
femur
bones used for protection
flat bones
tissue that connects muscle to bone
tendon
manufactures red and white blood cells
red bone marrow
most freely movable joints in the body
ball and socket joints
muscle cell in the heart
cardiac muscle cell
circulation to the kidneys
renal circulation
circulation to the heart
coronary circulation
circulation to the liver
portal circulation
high blood pressure
hypertension
sacs at the end of the bronchioles in the lungs
alveoli
disease similar to dementia but occurs much earlier in life and may be genetic
Alzheimer’s disease
organs responsible for taste
taste buds
nerve of the body that connects the nose to the brain
olfactory nerve
nerve of the body that connects the eye to the brain
optic nerve
- cells in the eye responsible for color
- cells in the eye responsible for light and dark
- cones
- rods
building blocks of proteins
amino acids
fatty substances that are insoluble in water
lipids
organs that tear and crush food for easier digestion
teeth
most common disease in man
cavities (dental caries)
rhythmic wave of muscular contractions of the esophagus and digestive tract
peristalsis
primary organ of digestion and absorption
small intestine
signals the liver and muscles to remove glucose from the blood and store it as glycogen
insulin
infection of the colon
dysentery
condition that occurs when the blood pressure drops to a critical low
circulatory shock
disorder resulting from too little oxygen being transported to body cells
anemia
what are part of the immune system
white blood cells (leukocytes)
- universal blood donor
- universal blood recipient
- O-
- AB+
body’s most efficient pump
heart
inability of the body to clot blood
hemophilia
largest artery
aorta
blood vessels that carry blood away from the heart
arteries
blood vessels that carry blood back to the heart
veins