Lesson 2 - Cardiovascular & Lymphatic System

Question 1

Cardiovascular system

Answer 1

= heart and 3 blood vessel structures (arteries, veins, capillaries)

a closed loop system = supposed to stay in your body

Question 2

Cardiovascular Structures

Answer 2

Heart
Arteries
Capillaries
Veins

Question 3

Heart

Answer 3

• cardiac striated muscle fibers.
• Involuntary pump.

Question 4

Arteries

Answer 4

• Thicker smooth visceral muscle walls.
• Always carry blood away from the heart.

Question 5

Capillaries

Answer 5

• walls are 1 cell thick for simple diffusion (exchange of gases - oxygen to co2).
• super tiny and delicate, thinner than a strand of hair.

Question 6

Veins

Answer 6

• Thinner smooth visceral muscle walls
• Valves prevent back flow of blood
• Always carry blood back to the heart.

Question 7

Varicose Veins (local contraindications)

Answer 7

Dysfunction of cardiovascular system. A local contraindication of distended vein walls due to broken valves –> blood starts to pool. Most likely to see in superficial veins in lower extremities. Appears purple or blue. Don’t put deep or direct pressure.

Question 8

Hypertension / High Blood Pressure (possible contraindications)

Question 9

Lymphatic System

Answer 9

Major component of immune system.

Helps rid body of toxins, date and other unwanted materials.

Open Loop System.

Question 10

Lymphatic System Function

Answer 10

1. transport lymph (fluid containing white blood cells).
2. drain and recycle cellular waste

Question 11

Lymphatic (Open Loop System)

Answer 11

Begins in intercellular spaces and drains waste from cells through peripheral ducts. Interstitial fluid and lympathic fluid basically the same.

Carries remaining waste products through deep ducts to subclavian veins

Open Loop - walls of lymph vessels are permeable

Question 12

Lymphatic vessels

Answer 12

Tube-like structures that carry lymph away from the tissues to deliver it back into the blood’s circulation

Question 13

Lymph Nodes Primary Location & Function

Answer 13

Function - filters and recycles waste from lymph vessels.

Location Groups:
1. Cervical - located in neck
2. Axillary - located in armpits
3. Inguinal - located in groin

Question 14

Edema

Answer 14

Lymphatic dysfunction — pooling of lymph fluid.

Isolates & restricts motion in an area to prevent further damage.

Question 15

swollen lymph nodes

Answer 15

sign of bacterial or viral infection (e.g tonsillitis, flu, etc)

Question 16

Closed Loop System

Answer 16

Systemic Circuit - going out to body (except lungs). heart contracts, sends blood through systemic arteries & capillaries, oxygen poor blood travels back via veins.

+

Pulmonary Circuit (lungs)
Heart contracts, sends to pulmonary arteries and capillaries, diffuses from co2 rich to o2 rich, and travels back to heart through pulmonary veins.

Question 17

MITT

Answer 17

Circulatory massage contraindications:

1. Malignancy
2. Inflammation / Infection (redness, warmth-heat, swelling, pain)
3. Tendency to Hemorrhage (bleed)
4. Tendency to Clot

Question 18

Systemic Circuit

Answer 18

1. Oxygen Rich blood leaves via systemic arteries and goes into systemic capillaries
2. Simple diffusion happens – becomes Carbon Dioxide Rich blood
3. Carbon Dioxide Rich blood goes into systemic veins back towards heart

Question 19

Pulmonary Circuit

Answer 19

1. Oxygen Poor blood leaves via pulmonary arteries and goes into pulmonary capillaries
2. Simple diffusion happens – becomes Oxygen Rich blood
3. Oxygen Rich blood goes into pulmonary veins back towards heart

Question 20

Cardiovascular System Functions

Answer 20

1. deliver oxygen and nutrients to tissues
2. transports waste products to organs responsible for elimination