Biology Quiz 6 Flashcards
Blood vessels that takes blood from the heart to the intestine gastrointestinal tract
Mesenteric artery
A valve allowing blood to pass from the right atrium to the left atrium in a fetus - bypassing the lungs
Oval opening
Fluid portion of blood, mostly water, includes globulins (proteins from liver), nutrients, wastes, cholesterol, steroid hormones, dissolved gases + various ions
Plasma
Blood cells formed by the fragmentation of a megakaryocyte (large cell from bone marrow), functions for blood clotting
Platelets
The major vein that drains the blood from the body regions posterior to the heart
Posterior vena cava
vessels that carry deoxygenated blood from the right ventricle of the heart to the lungs
Pulmonary arteries
Circulation of blood between the heart and the lungs, portions of the circulatory system that relates to the lungs
Pulmonary circulation
Artery that leaves the right ventricle and branches to form the right and left arteries
Pulmonary trunk
Deliver oxygen rich blood from the lungs to the left atrium
Pulmonary veins
Nerves that begins at the AV node in the atrium, extend down the septum + out into the ventricle walls, cause ventricles to contract
Purkinje fibres
Blood cells that carry oxygen from the lungs to the body cells, cells that are mass produced by the red bone marrow, contains hemoglobin, Co2 + hydrogen in blood
Red blood cells
Blood vessels that carries blood to the kidney
Renal artery
Blood vessels that carries blood away from the kidney and towards the heart
Renal vein
Receives deoxygenated blood from the body through the anterior and posterior vena cava, passes blood along to the ventricles to be pumped out of the heart
Right atrium
Pumps deoxygenated blood to the lungs, marks the beginning of the pulmonary circut
Right ventricle
Located in the right atrium, receives the message from the brain and causes the contraction of the atria, then sends an impulse to the AV node to stimulates its activity
Sinoatrial node (SA)
Valve with flaps resembling a half moon, located between the ventricles + their attached blood vessels
- Prevent backflow of blood into ventricles
- blood must go through them to exit the heart
Semi-lunar valve
Thick muscular wall separating blood from one side of the hear from the other
Septum
Both a left and right blood vessels that supply blood to the shoulders and upper limbs
Subclavian artery
Returns blood from the shoulders and arms to the superior vena cava
Subclavian vein
Circulation that supplies blood to all the body except to the lungs
Systemic circulation
Blood pressure in the arteries during contraction of the ventricles (normal is 12)
Systolic pressure
Carries blood from fetus aorta to placenta
Umbilical artery
Structure that controls the movement of blood through blood vessels
- prevent backflow
Valve