Successfully reported this slideshow.
We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. You can change your ad preferences anytime.
BLOOD VESSELS
, ,
&
•AMIR RIFAAT
3 major types
Arteries
Capillaries
Veins
2 sub-types
Arterioles
Venules
60,000 miles or
100,000km of
blood vessels
• As the heart contracts, it forces blood into
the large arteries leaving the ventricles.
• The blood then move to smaller...
• Carry blood away from the heart.
• “Branch” or “diverge” as they form smaller and smaller
division.
• Thick-walls to wit...
• Carry blood toward the heart.
• “Join” or “merge” into successfully larger vessels approaching
the heart.
• Have valves ...
• Connect arteries and veins.
• Contact tissue cells and directly serve cellular needs.
• Exchange between blood and tissu...
• Flow of blood from arteriole to venule = microcirculation
• Capillary beds consist of two types of vessels:
1. Vascular ...
1. Blood flowing through the terminal arteriole may go either
through the true capillaries or vascular shunt.
2. It is dep...
Brain
Heart
Skeletal
muscles
Skin
Kidney
Abdomen
Other
1. Right ventricle pumps deoxygenated blood
through pulmonary artery to the lungs.
2. The blood picks up 02 from the lungs...
Blood vessels: Arteries, Veins and Capillaries
Blood vessels: Arteries, Veins and Capillaries
Blood vessels: Arteries, Veins and Capillaries
Blood vessels: Arteries, Veins and Capillaries
Blood vessels: Arteries, Veins and Capillaries
Upcoming SlideShare
Loading in …5
×

81

Share

Download to read offline

Blood vessels: Arteries, Veins and Capillaries

Download to read offline

It is one of the circulatory systems. This explains the roles of arteries, veins and capillaries. It also differentiate between the arteries, veins and capillaries. This slide also explained the pulmonary circuit and systemic curcuit. This is an interesting notes and easy to be understand.

Related Books

Free with a 30 day trial from Scribd

See all

Blood vessels: Arteries, Veins and Capillaries

  1. 1. BLOOD VESSELS , , & •AMIR RIFAAT
  2. 2. 3 major types Arteries Capillaries Veins 2 sub-types Arterioles Venules 60,000 miles or 100,000km of blood vessels
  3. 3. • As the heart contracts, it forces blood into the large arteries leaving the ventricles. • The blood then move to smaller arteries, finally reaching their smallest branches, the arterioles (little arteries), which feed into the capillary beds (collection of capillaries) of body organs and tissues. • Blood drains from the capillaries into venules (little veins), and then on into larger and larger veins that merge to form the large veins that ultimately empty into the heart. HEART ARTERY ARTERIOLE CAPILLARY VENULEVEIN
  4. 4. • Carry blood away from the heart. • “Branch” or “diverge” as they form smaller and smaller division. • Thick-walls to withstand pressure produced when heart pushes blood into the arteries. Elastic fibers (tunica media) allow the artery to stretch under pressure. • Aorta: Largest artery vessels • Arteriole: Smallest artery vessel that connect arteries to capillaries Pulmonary circulation • Carry poor oxygen blood from heart to the lungs. Systemic circulation • Carry rich oxygen blood from heart to the organs and tissues.
  5. 5. • Carry blood toward the heart. • “Join” or “merge” into successfully larger vessels approaching the heart. • Have valves which act to stop the blood from going in the wrong direction. • Body muscles surround the veins so that when the muscles contract, the veins are squeeze and the blood been pushed along the vessels. • Vena cava: SVC (blood from upper body) & IVC (blood from lower body. • Venules: Smallest vein vessels that connect veins to capillaries Pulmonary circulation • Carry rich oxygen blood from lungs to the heart Systemic circulation • Carry poor oxygen blood from capillaries to the heart
  6. 6. • Connect arteries and veins. • Contact tissue cells and directly serve cellular needs. • Exchange between blood and tissue cells occur. • Exchange: • Drop off oxygen and nutrients from heart by arteries • Pick up CO2 and other waste products and send to heart by veins . • Walls are one cell thick and very narrow.
  7. 7. • Flow of blood from arteriole to venule = microcirculation • Capillary beds consist of two types of vessels: 1. Vascular shunt: metarteriole-thoroughfare channel (short vessel that directly connect arteriole and venule. 2. True capillaries: actual exchange vessels. • Metarteriole: Vessel structurally intermediate between arteriole and capillary. • Thoroughfare channel: Vessel structurally intermediate between capillary and venule. • Precapillary sphincters: Surround the root of each true capillaries at the metarteriole and act as a valve.
  8. 8. 1. Blood flowing through the terminal arteriole may go either through the true capillaries or vascular shunt. 2. It is depend on the precapillary sphincters. 3. Sphincter open (relax): Blood flow through the true capillaries and takes part in gas exchange with tissue cells. • The terminal arteriole feeding the bed leads into true capillaries and joins at postcapillary venule that drains the bed. 4. Sphincter close (contract): Blood flow through the vascular shunt and bypasses the tissue cells. • The terminal arteriole feeding the bed leads into metarteriole and continue to thoroughfare channel and joins at postcapillary venule that drains the bed.
  9. 9. Brain Heart Skeletal muscles Skin Kidney Abdomen Other
  10. 10. 1. Right ventricle pumps deoxygenated blood through pulmonary artery to the lungs. 2. The blood picks up 02 from the lungs and dumps CO2 into the lungs. 3. Oxygenated blood returned to the left atrium thru the pulmonary vein. 4. From the diagram, the pulmonary circuit happen from number 1 until number 4. 1. Oxygenated blood is pumped from left ventricle to the body (upper and lower) thru aorta. 2. Blood dumps oxygen into tissues and picks up CO2. 3. Deoxygenated blood travels from body to vena cava (SVC & IVC) to the right atrium. 4. From the diagram, the systemic circuit happen from number 5 until number 11.
  • OsamaMahmoud60

    Jun. 3, 2021
  • LikithaPamisetty

    May. 8, 2021
  • soumyaadhikari2

    May. 6, 2021
  • MathiMathi29

    Apr. 12, 2021
  • PritiHattimare

    Mar. 27, 2021
  • talatkhan13

    Mar. 19, 2021
  • SmritiM3

    Mar. 7, 2021
  • RandyOrua

    Feb. 23, 2021
  • JyotikaPegu

    Jan. 11, 2021
  • MercyJoe1

    Jan. 5, 2021
  • BandariMuraliKrishnaMohan

    Dec. 5, 2020
  • AshwinBromeo

    Aug. 10, 2020
  • OmarNoorzad1

    Jul. 28, 2020
  • AnooKimo

    Jul. 4, 2020
  • QamarSaadi

    Jun. 26, 2020
  • Nehan12

    May. 5, 2020
  • FatimaSaad15

    Apr. 13, 2020
  • SujanSk4

    Feb. 16, 2020
  • NikiVaid

    Feb. 7, 2020
  • ShifaMassey

    Jan. 28, 2020

It is one of the circulatory systems. This explains the roles of arteries, veins and capillaries. It also differentiate between the arteries, veins and capillaries. This slide also explained the pulmonary circuit and systemic curcuit. This is an interesting notes and easy to be understand.

Views

Total views

43,580

On Slideshare

0

From embeds

0

Number of embeds

75

Actions

Downloads

2,032

Shares

0

Comments

0

Likes

81

×