Transcript Objective - O. Henry Science

DO NOW
7th
Grade
Science
Create a Venn Diagram to compare the
Respiratory and Circulatory systems.
QUIZ-STUDY (5 min)
7th
Grade
Science
Study the structures and functions of the
circulatory and respiratory systems.
Be sure to take a look at the steps in which
blood circulates to lungs, heart, and cells on
the body.
QUIZ
7th
Grade
Science
SWITCH PAPERS WITH SOMEONE NEAR YOU.
DO-NOW
7th
Grade
Science
Pick up a Qwizdom remote and use it to select the words that best
complete the statements below. You will use each word once.
Veins return __(1)__ blood back to the heart.
The heart then pumps the oxygen poor blood to
either the right or left __(2)__. There, the blood
picks up oxygen and drops off carbon dioxide at
the __(3)__. Next, the __(4)__ blood returns
back to the heart. The oxygen rich blood is
pumped away from the heart through __(5)__.
As it travels, the blood passes through very tiny
blood vessels called __(6)__, where it delivers its
O2 load to the cells and picks up their waste, like
CO2. Then it returns back to the heart and the
cycle repeats.
Answer Choices:
a. Oxygenated
b. Deoxygenated
c. Arteries
d. Lung
e. Capillaries
f.
Alveoli
7th
Grade
Science
Today’s Schedule
1. Do-Now
2. Heart structure and function
3. Review Dissection Safety
4. Heart Observations
Homework is due Friday, Dec.
2nd
Essential Questions
Dark Matter
How do different body
structures function
together to sustain life?
7th
Grade
Science
Observations
Written
Observations
Anterior (front)
Side
Written
Observations
Posterior (Back)
Side
Sketch
Anterior (front)
Side
Sketch
Posterior (Back)
Side
Observations
What I Think
I think the difference between
the white and gray tissue is
that ____.
I think the large, diagonal line
across the heart is ____.
I think one half of the heart is
larger than the other half
because _____.
7th
Grade
Science
What I Know
We will fill
this in
after the
dissection
The Heart
7th
Grade
Science
How does the heart work?
http://library.med.utah.edu/kw/pharm/hyper_heart1.html
3/28/2016
Dissection Safety
7th
Grade
Science
Hold scalpel properly; it is extremely sharp.
Where goggles at all times
Do not taste or eat any part of the heart
Wear gloves and avoid contact with skin
Heart Dissection Procedures
Objective: Locate the blood vessels
that supply (feed) the heart with
blood.
Structures:
Coronary Artery
Coronary Vein
Functions:
1. The coronary arteries deliver
oxygenated blood to the heart.
2. The coronary veins remove
deoxygenated blood from the
heart.
7th
Grade
Science
Heart Dissection Procedures
7th
Grade
Science
Objective: Identify the veins that
deliver deoxygenated blood to the
heart.
Structures:
1. Superior Vena Cava
2. Inferior Vena Cava
Functions:
1. Superior Vena Cava returns blood
from the top half of the body
2. Inferior Vena Cava returns blood
from the bottom half of the body
Superior
V.C.
Inferior
V.C.
Posterior (Back) View
Heart Dissection Procedures
7th
Grade
Science
Objective: Expose the 2 chambers of the
heart that hold and pump deoxygenated
blood.
Procedures:
1. Locate superior vena cava
2. Make an incision (cut) beginning at the
superior vena cava to the bottom of the
heart.
3. Cut deep enough that you can open the
heart like a book.
Posterior (Back) View
7th
Grade
Science
Heart Dissection Procedures
Objective: Identify the 2 chambers of the
heart that hold and pump deoxygenated
blood.
Structures:
1. Right Atrium
2. Right Ventricle
3. Tricuspid Valve
Tricuspid
Valve
Right
Atrium
Functions:
1. Right atrium receives blood from the
superior and inferior vena cava
2.
Right ventricle pumps blood to the lungs.
3.
Tricuspid valve prevents blood from
flowing backwards
Right
Ventricle
Heart Dissection Procedures
7th
Grade
Science
Objective: Identify the blood vessel that carries
deoxygenated blood to the lungs.
Tricuspid
Valve
Structures:
1. Pulmonary Arteries
Functions:
1. The pulmonary arteries carry
deoxygenated blood away from the heart
to the lungs.
Procedures: Using your finger or a probe,
locate the opening inside the right
ventricle that leads to the pulmonary
arteries.
Right
Atrium
Right
Ventricle
Heart Dissection Procedures
7th
Grade
Science
Objective: Identify the blood vessels that
transport oxygenated blood to and from
the heart.
Structures:
1. Pulmonary Vein
2. Aorta
Aorta
Pulmonary
Artery.
Aorta
Pulmonary
Vein
Superior
V.C.
Functions:
1. The pulmonary veins deliver
oxygenated blood from the lungs to
left atrium of the heart.
1. The aorta is the artery than moves
oxygenated blood out of the heart.
Posterior (Back) View
7th
Grade
Science
Heart Dissection Procedures
Objective: Expose the 2 chambers of
the heart that hold and pump
oxygenated blood.
Procedures:
1. Locate aorta
Aorta
Pulmonary
Vein
Superior
V.C.
2. Make an incision (cut) beginning at
the aorta, continuing through the
pulmonary vein, and ending at the
bottom of the heart.
3. Cut deep enough that you can
open the heart like a book.
Posterior (Back) View
7th
Grade
Science
Heart Dissection Procedures
Objective: Identify the 2 chambers of the
heart that hold and pump oxygenated
blood.
Structures:
1. Left Atrium
2. Left Ventricle
3. Mitral Valve
Functions:
1. Left atrium receives blood from the
pulmonary veins.
2.
Left ventricle pumps blood out the
aorta to the body.
3.
Mitral valve prevents blood from
flowing backwards
Left
Atrium
Mitral
Valve
Left
Ventricle
Posterior (Back) View
7th
Grade
Science
Heart Dissection Procedures
Objective: Locate the opening inside the
left ventricle that leads to the aorta.
Procedures: Using your finger or a probe,
locate the opening inside the Left
ventricle that leads out to the aorta.
Left
Atrium
Aorta
Mitral
Valve
Left
Ventricle
Posterior (Back) View
Clean-Up Procedures
7th
Grade
Science
1. Place your heart into plastic bag and write your table number
and period on the bag.
2. Clean dissection tray
1. Throw away large pieces of tissue in garbage
2. Clean tray with sponge and water.
3. Clean dissection tools
1. Use hand brush
4. Wipe table down with disinfectant wipe
5. Place tray and dissection tools back on front bench .
Conclusion
What I Think
I think the difference between
the white and gray tissue is
that ____.
I think the large, diagonal line
across the heart is ____.
I think one half of the heart is
larger than the other half
because _____.
7th
Grade
Science
What I Know
EXIT TICKET
7th
Grade
Science
Pick up a Qwizdom remote and use it to select the words that best
complete the statements below. You will use each word once.
Veins return __(1)__ blood back to the heart.
The heart then pumps the oxygen poor blood to
either the right or left __(2)__. There, the blood
picks up oxygen and drops off carbon dioxide at
the __(3)__. Next, the __(4)__ blood returns
back to the heart. The oxygen rich blood is
pumped away from the heart through __(5)__.
As it travels, the blood passes through very tiny
blood vessels called __(6)__, where it delivers its
O2 load to the cells and picks up their waste, like
CO2. Then it returns back to the heart and the
cycle repeats.
Answer Choices:
a. Oxygenated
b. Deoxygenated
c. Arteries
d. Lung
e. Capillaries
f.
Alveoli
DO NOW
7th
Grade
Science
Use your notes to fill in the spaces:
SYSTEM
Nervous
Endocrine
Respiratory
Circulatory
FUNCTION
TEST REVIEW
Test is on Monday!
7th
Grade
Science