HBS 1

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Terms in this set (...)

gases
nutrients
hormones
What are three things the circulatory system moves through the body?
the heart to the lungs
A pulmonary artery carries blood from...
maintain homeostasis
When you hearts and breathing speed up or slow down, your body is trying to ...
artery
What type of blood vessels carry blood away from the heart?
- walls are a single layer of cells
- carry blood between arteries and veins
What is the structure and location of capillaries?
aorta
What is the largest artery in the body?
four
How many chambers are there in a human heart?
heart
lungs
kidneys
What are three organs that blood travels through?
red blood cells
What type of blood cells contain hemoglobin, which carry oxygen to all the cells in your body?
white blood cells
What type of blood cell destroys invading organisms or germs such as viruses,
bacteria, fungi, and parasites?
plasma
What is the liquid part of blood that carries nutrients, cell wastes, and all of the other
types of cells that make up blood? (it is made up of 55% of blood, and 90-95% water)
anemia
What is the blood disorder in which the victim lacks enough red blood cells, therefore
causing the person to be 'oxygen deficient'. It results in fatigue.
leukemia
What is a cancer of the blood, whereby too many white blood cells are being created,
lessening the number of red blood cells in the blood.
contracts and flattens
What does the diaphragm do when we inhale (breathe in)?
epiglottis
What is the name of the muscular flap that prevents food from going into the lungs?
bronchi
The trachea branches into the ___________.
alveoli
Which part of the respiratory system consists of air sacs with capillaries. This is where
gas exchange takes place between air in the lungs and the blood?
wheezing
What is one of the major symptoms of asthma?
immune
What 'disease-fighting' system is the lymphatic system a part of?
pumped by the heart
How does lymph move through the body?
fight infection
What do the lymphocytes (white blood cells) do to help us?
you are fighting an infection
What happens when your tonsils/lymph nodes swells up?
activates muscles
transmit nerve impulses
respond to stimuli
What are three functions of the nervous system?
dendrite
Which part of this neuron receives messages?
motor
Which type of neuron relays signals from the central nervous system to the muscles?
central and peripheral
What are the two systems that make up the nervous system?
sensory
inter
motor
What are the the three primary types neurons (nerve cells) called?
hormones
The endocrine system uses what kind of chemicals secreted into the bloodstream
from glands, which help to control and coordinate the body?
pituitary
Which gland is the master gland in the system, under the
control of the hypothalamus?
thyroid
What gland is located in the neck, and secretes hormones which regulate metabolism,
body temperature, and weight?
adrenal
What glands sit on top of the kidneys, and produce the hormone adrenaline?
insulin
Which hormone injections are used to treat diabetes?
homeostasis
The process of maintaining internal conditions?
differentiation
Stem cells start to ______ and develop different structure and functions.
sensor
Which part of a negative feedback loop detects changing conditions?
positive feedback loop
What type of feedback loop occurs in nature when the product of a reaction leads to an INCREASE in that reaction.
receptor
Target cells for a given hormone have the correct _____.
action potential
An electrical impulse moving down an axon is called a(n) ____.
respond to stimuli
Both the nervous and the endocrine systems allow you to ______.
they are dissolved by mucus
What happens to impulses generated by chemoreceptors in the nose and the
mouth?
central nervous system
Your brain and spinal cord make up the _____.
force against the wall of an artery
Blood pressure is a measurement of ....
antibodies
Which of the following causes pathogens to clump together, making them easier
to destroy?
acquired
Immunity provided by a vaccine is a type of immunity called ________.
vaccine
What is the term for a substance that contains antigens and produces immunity in
an individual?
autoimmune disease
A disease that is caused by the inability of the immune system to distinguish
between healthy and unhealthy cells is called a(n) _____.
immune system
HIV targets your ___________.