Transcript White blood cells

It’s Totally Tubular,
Dude!
Objective:
To learn the
structure and function of the
Cardiovascular and Lymphatic
Systems
Bell Work: Put the terms in the
correct order from most simple
to most complex (2 sets today):
HEART
BLOOD
CIRCULATORY SYSTEM
RED BLOOD CELL
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WHITE BLOOD CELL
TONSILS
LYMPHATIC SYSTEM
LYMPH
Function:
1. Carries nutrients & oxygen to cells & waste and
carbon dioxide away from cells
2. Contains cells that fight disease
3. Includes heart, blood vessels, blood
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a. Heart: pumps blood to all parts of
body and has four chambers
1. Atria (atrium): upper two
chambers
2. Ventricles: lower two
chambers
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b. Blood Vessels carry blood to every cell
1. Arteries: oxygen-rich blood AWAY
FROM heart to body
2. Veins: oxygen-poor blood from
body BACK TO heart
3. Capillaries: microscopic blood
vessels connect arteries to veins
(only ONE CELL THICK!!)
i. Nutrients and oxygen diffuse
into body cells
ii. Waste and carbon dioxide
diffuse out of body cells
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Parts of Blood
1. Plasma: “watery” part of blood that carries nutrients,
minerals, oxygen to cells and carries waste away
2. Red blood cells: carry oxygen to cells using hemoglobin
(made in bone marrow)
3. White blood cells: fight bacteria and viruses. When sick,
body makes more WBC’s (made in bone marrow)
4. Platelets: cell fragments that work to form a scab
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Color your
heart diagram
following the
key provided
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Lymphatic (Immune) System
includes a network of vein-like
vessels and lymph nodes that
filter and return fluid (lymph) to
the bloodstream; fights disease
1. Lymph: consists of water,
glucose and white blood
cells
2. Lymph nodes filter lymph,
trapping bacteria; makes
white blood cells; enlarge
when fighting disease
3. Lymph moves through
lymph vessels by skeletal
muscle contraction
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4.
Connects to circulatory system
through lymphatic veins in the
chest that return the filtered
fluid to the bloodstream
(Lymphatic vessels are shown as dotted
lines in this diagram)
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Pump it Up!
Objective: To determine what pulse rate tells you about how the
heart works and to determine your heart rate before and after
various activities (resting, standing, jogging, holding breath).
Hypothesis: Write a hypothesis explaining which activity will
affect your heart rate the most and why.
What You Do:
Do each activity for ONE MINUTE as directed by the teacher. To
find your pulse, place two fingers on your wrist, closest to your
thumb. Measure your heart rate for a total of 15 seconds as
directed by the teacher and then multiply by 4 to get beats per
minute.
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