biology body systems Flashcards

(45 cards)

0
Q

What is the difference between breathing and respiration?

A

Breathing is the process of inhaling and exhaling, getting air into and out of the lungs. Respiration occurs at a cellular level.

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1
Q

What are 3 functions of the respiratory system?

A

Allows o2 and co2 out of our body
Allows o2 into our blood
Allows co2 out of our blood
Allows for cellular respiration to occur

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2
Q

What is the respiratory surface?

A

The surface where gas exchange takes place

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3
Q

What is the diaphragm?

A

A mussel that forms the chest cavity, separates the lungs

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4
Q

What is the respiratory surface in humans what makes it up?

A

The walls of the alveoli which are one cell thick

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5
Q

What are the 4 phases of respiration?

A

Breathing external respiration circulation internal respiration

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6
Q

What is breathing controlled by?

A

The respiratory centre

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7
Q

Name 3 respiratory diseases?

A

Asthma, bronchitis, lung cancer, emphysema,pneumonia

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8
Q

What is the mucous membrane?

A

Made up of ciliates epithelial cells, traps bacteria, dust, and other particles in the air.

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9
Q

What is digestion?

A

The process where food molecules are broken don

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10
Q

What I extra cellular digestion?

A

The process that causes food to move through the digestive tube

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11
Q

What are the 3 fluids in the small intestine?

A

Bile, pancreatic juice, and intestinal juices

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12
Q

What is the end product of digestion?

A

Feces

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13
Q

Why does food have to be digested?

A

The nutrient molecules in food are to large to pass through the cell membrane

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14
Q

What are 3 mechanisms that stimulate the flow of gastric juice?

A

The thought sight smell or taste, food touching the lining, and when’s food mass enters the stomach

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15
Q

What happens during absorbrion?

A

Digested nutrients pass through the epithelial cells and enter either the capillaries or the lacteal. Absorbtion involves both diffusion and active transport.

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16
Q

What are the 3 main functions of the large intestine?

A

The re absorbtion of water, the absorbtion of vitamins produced by bacteria, and the elimination of undigested and Indigested material

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17
Q

What is a villus?

A

Within each villus is a network of blood capillaries and in the centre is the lacteal.

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18
Q

What are the 3 functions of the digestive system?

A

Energy, growth and repair

19
Q

What is the main function of the digestive system?

A

Get food into our bodies wand transport it by mechanical and chemical process so it can be used in our bodies

20
Q

What are the organs part of chemical digestion?

A

Pancreas and salivary glands

21
Q

What are the organs part of mechanical digestion?

A

Teeth, tongue, mouth, liver, esophagus

22
Q

What organs are part of absorbtion?

A

Large and small intestine

23
Q

What is different about the left and right lungs?

A

They have two lobs on the left and 3 on the right

24
What a alveoli?
Air sacs where oxygen and carbon dioxide are exchanged
25
How many bones are there in the body?
206
26
What are the 5 purposes of the skeletal system?
Shape and support, movement, protect major organs, makes red blood cells, stores phosphorus and calcium to make strong bones
27
What are the two types of joints?
Ball and socket, shoulder and hip | Hinge , everything else
28
What is the strongest bone in the body?
Femur
29
What are the elements of blood?
Red blood cells, white blood cells and platelets
30
What is the blood cell that is the most abundant?
The red blood cell with over 5 million per cube millimetre
31
What do platelets do?
Trigger blood clotting
32
What is the insoluble protein that traps cells to form a clot?
Fibrin
33
What are 3 conditions that cause blood not to clot normally?
Deficiency in platelets, vitamin k deficiency, hereditary disease called hemophilia
34
What are the parts of the circulatory system?
The heat, blood vessels, arteries, veins and capillaries
35
What are the three kinds of blood vessels?
Arteries, veins and capillaries
36
What is the function of the valves in the circulatory system?
To prevent blood flow in the opposite direction in veins.
37
What are the 4 functions of the circulatory system?
Carries oxygen and carbon dioxide to and from our lungs and body Fights illness Transports nutrients Maintains temperature
38
What is the inner part of the bone called?
Spongy bone tissue
39
What do red blood cells do?
Transport oxygen and carbon dioxide
40
What do white blood cells do?
Fight disease
41
Where do arteries and veins carry the blood?
Arteries carry blood away from the heart and veins carry it to the heart
42
What is the transport medium for red blood cells white blood cells and platelets?
Plasma
43
What is respiration?
Moves oxygen into the body and gives up carbon dioxide to the environment
44
What is air a mixture of?
Nitrogen, oxygen , carbon dioxide