EXPLORING THE BODY SYSTEM BY SYSTEM:
CIRCULATORY SYSTEM: (page 93, 135-140)
LEARNING OUTCOME #3: INTERPRET THE HEALTHY FUNCTION OF HUMAN BODY SYSTEMS, AND ILLUSTRATE WAYS THE BODY
REACTS TO INTERNAL AND EXTERNAL STIMULI
3a) describe, in general terms, body systems for respiration, circulation, digestion, excretion and sensory awareness
3b) describe in general terms, the role of individual organs and tissues in supporting the healthy functioning of the human body
3c) describe ways in which various types of cells contribute to the healthy functioning of the human body
3d) describe changes in body functions in response to changing conditions
FUNCTION: is known as your transportation system. It delivers ______________
absorbed by your digestive system and __________________ in your lungs to your cells
and removes __________________ products from the cells.
1. Label the following diagram. Use arrows to show the flow of blood through your
body.
2. Your heart is actually 2 _____________. The __________ and ____________ sides of
your heart work together to pump blood through your body. The right side of
your heart pumps blood to the ___________________ where the blood is enriched
with oxygen. The left side of your heart pumps the oxygen rich blood to
your _____________.
Superior Vena Cava
(vein)
Inferior Vena Cava
(vein)
3. The circulatory system is one complete circuit. It is a closed system where
pressure is needed to maintain blood flow. Complete the chart below starting
when blood from your body enters your heart.
STRUCTURE
WHAT HAPPENS
SUPERIOR AND
-special names for the veins that return de-oxygenated blood to
INFERIOR VENA
the right atrium (heart)
CAVA
HEART (right side) The _________ _________________ receives de-oxygenated blood
from the body and pumps it to the right ventricle.
The __________ ________________ then pumps the de-oxygenated
blood to the lungs via the pulmonary artery.
LUNGS
Blood gets rid of ___________ ___________ (diffusion into the
alveoli) and receives _____________ from the lungs (diffusion from
the alveoli to the capillaries around the alveoli).
Oxygenated blood is then returned to the heart via the
pulmonary vein.
HEART (left side)
The ___________ _________________ receives the oxygenated blood
from the lungs and pumps it to the ____________ _______________.
The __________ _______________ then pumps this oxygen rich out
the _____________ (largest artery) to the body cells.
ARTERIES to
CAPILLARIES to
VEINS
Arteries are blood vessels that __________ the heart (usually rich
in oxygen)
Arteries branch into smaller and smaller vessels until they
become ____________________. Here, at the cell level oxygen
diffuses _______ of the blood and ______________ _____________
diffuses into the blood.
The capillaries then form the de-oxygenated blood vessels called
_______________ and carry deoxygenated blood back to the heart.
SUPERIOR AND
-CIRCUIT STARTS OVER
INFERIOR VENA
CAVA to the
HEART AGAIN
4. Blood vessels are made up of three types of tissues:
a. Connective on the _____________________.
b. Muscle in the _________________________.
c. Epithelial on the _______________________.
5. Arteries have _______________ ____________________ layer that helps push the
blood along.
6. Veins are thinner and have _____________ that stop blood from flowing backwards.
Your skeletal muscles contracting also aid blood flow back to the heart.
7. Capillaries have two adaptations for exchanging gases and nutrients.
a. Made of ________________ tissue only ___ layer thick
b. Is very narrow causing blood to flow in ___________ __________.
8. Sketch each type of blood vessel and label it
ARTERY
CAPILLARY
VEIN
9. Diagram out what exchanges
take place
at the cell level (blood and
body cell)
10.
Blood is composed of ____________ tissue and consists of:
a. _______ blood cells that carry oxygen and carbon dioxide,
b. _______blood cells that fight infection, and
c. Platelets that _______________ ______________ and plasma (55%), the
___________ part of the blood.
11.
This system can be affected by a poor diet which can lead to atherosclerosis.
Explain what atherosclerosis is and what it could cause (blockage-heart
attack). Make a diagram.
12.
What is another name for hypertension or high blood pressure?
13.
A stroke has the same cause as a heart attack except the blockage occurs in
the ______________________.