Blood Vessels

Blood Vessels

Circulatory System: Blood Vessels Arteries Transport blood from the heart HIGH pressure Carry oxygen rich blood

(except pulmonary artery) 3 tunics (layers): Tunic intima friction reducing lining endothelium Tunic media bulky middle layer muscle and elastic tissue Tunic externa connective tissue

Veins Transport blood back to the heart LOW pressure Same 3 layers except thinner walls Valves = blood flow in one direction

Capillaries One thin layer of endothelium Play an exchange role with tissue cells for nutrients and waste Capillary beds open and close to shunt blood from one body system to another

Pressure drops Lumen is the opening Pulse Pulse is the alternate expansion and recoil of a blood vessel wall as the heart beats; felt over any external superficial artery = pressure point

Blood Pressure Blood pressure is the pressure that blood exerts on the walls of the blood vessels Forces blood to continue moving Pressure is measured over a

pressure point, both systolic and diastolic Arterial blood pressure is influenced by heart rate (higher = higher) or resistance to blood flow: decrease in diameter, stretch of vessels, or

viscosity of blood Special Circulations Hepatic Portal The hepatic portal veins drain the digestive organs, spleen, pancreas, and deliver nutrient

rich blood to the liver which is involved in maintaining the proper glucose, fat, and protein concentrations. Brain Circulation A continuous blood supply is maintained by two pairs of

arteries: The internal carotids The vertebral arteries The Internal Carotids each divide and run into the anterior and middle cerebral arteries

Vertebrals each divide to form the posterior cerebral arteries The anterior and posterior blood supply are connected by branches- forming a complete circle

The Circle of Willis It protects the brain by supplying more than one route to reach all brain tissue Fetal Circulation A temporary circulation involving 3 vessels:

One umbilical- nutrients and oxygen to the fetus two umbilical arteries- carry carbon dioxide and waste to the placenta Shunts bypass the lungs and the liver Naming the systemic Arteries and Veins

Starting with the arteries we will move away from the heart (arteries move blood away) Arteries above the diaphragm All branch off the Aorta (largest artery) 1st SMALL branch is the coronary artery- which serves the heart

1st Large branch is the Brachiocephalic 2nd Large branch is the Right Common Carotid 3rd Large branch is the Right Subclavian Off of the Brachiocephalic: Left Common Carotid Left Subclavian

Each of the Common Carotids branch into : Internal Carotid which goes to the brain External Carotid which serves the head Each of the Subclavians will: 1st branch will be Vertebral which goes to the brain Under the armpit the subclavian becomes the

Axillary Which in the upper arm is the Brachial where blood pressure is normally taken The Brachial will split into the Ulnar (medial) and the Radial (lateral) Arteries under the diaphragm All branch off the Aorta (abdominal)

1st branch is the Celiac Trunk with 3 branches: Gastric- to stomach Hepatic- to liver Splenic- to spleen Next comes the Superior Mesenteric which serves the upper part of the intestine

Continuing down the abdominal aorta: Right and Left Renal brings blood to the kidneys Lumbar brings blood to the back muscles Gonadal brings blood to the gonads At the end of the torso: Common Iliac Artery

The Common Iliac Artery splits: External Iliac which becomes the Femoral in the thigh Internal Iliac loops back towards the pelvis Deep Femoral goes toward buttocks Femoral continues down thigh, will become the Popliteal behind the knee It splits into the Anterior and Posterior Tibial

Ends in the foot at the Dorsalis Pedis The veins bring blood back to the heart so we start at the distal end and move towards the heart. All the veins above the diaphragm drain into the Superior Vena Cava

The Radial and Ulnar Veins from the forearm drain into the Brachial vein The Cephalic (lateral) and Basilic (medial) meet at the Median Cubital (place where you get blood drawn for blood tests!) They all drain into the Brachial vein The Brachial drains into the Axillary under the

armpit The Axillary drains into the Subclavian The Vertebral takes blood from the posterior head and drains into the Subclavians The right and left Subclavians drain into the right and left Brachiocephalic The External Jugular drains the head and the

Internal Jugular drains the brain: both empty into the Braciocephalic The Right and Left Braciocephalic join to form the Superior Vena Cava which enters the heart The Azygos is a single vein that runs up the spine, drains the entire thorax and enters the SVC just before the heart

All veins below the diaphragm drain into the Inferior Vena Cava The Anterior and Posterior Tibial drain the calf and foot then become the Popliteal at the knee The Popliteal becomes the Femoral at the thigh The Great Saphenous vein is the longest vein,

it drains the superficial veins of the leg and empties into the Femoral The Femoral drains into the External Iliac The Internal Iliac drains the pelvis The External & Internal Iliacs meet at the Common Iliac The Right and Left Common Iliac join to form

the Inferior Vena Cava

The Renal veins drain the kidneys The Gonadal veins drain the gonads The Hepatic Veins drain the liver They all drain into the Inferior Vena Cava REMEMBER ALL DIGESTIVE ORGANS (GASTRIC, INTESTINES) DRAIN INTO THE HEPATIC PORTAL AND GO TO THE LIVER FOR PROCESSING, THEN ARE DRAINED BY THE HEPATIC VEIN!

The Inferior Vena Cava enters the heart, and it starts all over again.

Recently Viewed Presentations

  • Chapter 1 - Sanitation

    Chapter 1 - Sanitation

    Chapter 1 - Sanitation 1.1 Sanitary Food Handling. 9.0. PRACTICE LAB PROCEDURES AND SAFETY PRACTICES FOR THE CUL. ARTS ENVIRONMENT. ... FAT - TOM - conditions good for PATHOGENS (organisms that produce disease. Food. Acidity. Temperature. Time. Oxygen. Moisture.
  • HEALTH POLICY FELLOWSHIP Competition Guidelines  2017-A Intake October

    HEALTH POLICY FELLOWSHIP Competition Guidelines 2017-A Intake October

    Conny H. Lin, M.Sc. Ph.D. Candidate Neuroscience, University of British Columbia. Research Scientist | Rosetta Stone, Fit Brains Testimonial. This experience has: changed my perception of how government works (it's not what I thought at all) gained valuable connections with...
  • The Crucible - SCCPSS

    The Crucible - SCCPSS

    The Crucible . Final Test Notes . Giles Corey . Was an old man who was tortured by crushing him with stones . ... Symbols . Parris' materialism - golden candlesticks . Unrest in the village - dagger . Plaything...
  • Being the Right Person Rev. Phillip Schanker October

    Being the Right Person Rev. Phillip Schanker October

    An article in Psychology Today in March, 2010 emphasizes that the increased expectations for personal happiness in our society lead many couples to easily become disenchanted and feel unfulfilled in their relationships- we expect our relationships to give us what...
  • Horse Breed and Selection - glenrosearkansasffa.com

    Horse Breed and Selection - glenrosearkansasffa.com

    Bay 6. Dappled Gray 7. Black 8. Chestnut Light Horse Breeds Colors Review 9. Sorrel 10. Pinto 11. Dun 12. Appaloosa Light Horse Breeds Colors Quiz Light Horse Breeds Colors Quiz Light Horse Breeds Colors Quiz Answers 1. Blue Roan...
  • Integration testing - Ernesto Kardzio blogas

    Integration testing - Ernesto Kardzio blogas

    Top down integration testing is an incremental integration testing technique which begins by testing the top level module and and progressively adds in lower level module one by one. Lower level modules are normally simulated by stubs which mimic functionality...
  • BioPatML Pattern sharing for the Genomic Sciences Stefan

    BioPatML Pattern sharing for the Genomic Sciences Stefan

    Times New Roman Arial Verdana Wingdings Courier New Cliff 1_Cliff BioPatML Pattern sharing for the Genomic Sciences Slide 2 Unifying the Description of Patterns in Biological Sequences Slide 4 Slide 5 Libraries of Patterns Slide 7 SilverGene: Genome browser BioPatML...
  • Subjecting the Subjunctives - Gordon College

    Subjecting the Subjunctives - Gordon College

    Rapping the Lord's Prayer. ὡςἐν οὐρανῷκαὶ ἐπὶ γῆς· as in heaven also on earth