Circulatory System Flashcards
Carries oxygen and nutrients to every cell of the body and to remove carbon dioxide and other wastes from the cells.
Circulatory System.
Movement of material from blood to cells and vice verse happens through the process of?
Diffusion.
Transports blood and food molecules to body cells through the red blood cells.
Circulatory System.
The circulatory system consists of the?
Heart, blood, and blood vessels.
Fluids contained in these systems are?
Blood and lymph.
A muscular organ positioned behind the ribcage and between the lungs, is the pump that keeps this transport system moving.
Heart.
Pumps blood through the blood vessels.
Heart.
Two upper chambers of the heart are?
R and l atria.
They receive blood coming into the heart.
Atria.
Pump blood out of the heart.
Ventricles.
A wall of tissue that divided the heart in half prevents blood from flowing between the two atria or two ventricles and separates the flow of oxygenated and deoxygenated blood.
Septum.
An English doctor who discovered the mechanics of blood circulation and the role of the heart in propelling it.
William Harvey.
Transports essential elements throughout the body.
Blood.
Functions of blood:
- Transport of dissolved gases, nutrients, hormones, and metabolic wastes.
- Protection against toxins, and blood loss injuries.
- Stabilization of body temperature.
- Regulation of the pH levels.
Blood is aka?
The river of life.
Blood is more accurately a?
Fluid tissue, it is composed of cells.
The fluid part of blood is know as?
Plasma.
It comprises about 55% of blood volume.
Plasma.
45% of blood volume.
Formed elements: blood cells, and platelets.
A yellowish liquid that is about 92% water.
Plasma.
Consists of water, other solutes, and soluble proteins.
Plasma.
Three types of cellular components are suspended in the plasma of the blood, they are:
Red blood cells, WBC, and platelets.
Formed elements
RBC, WBC, and platelets.
RBC are also called?
Erythrocytes.
A circular, flattened, biconcave disc. Its center is thinner that its edge.
Carry oxygen through the body
RBC.
RBCs live for?
120 days.
Colorless and do not contain hemoglobin. Larger than RBC but fewer in number. Each is irregularly shaped and contains a nucleus. Can move, change shape, and squeeze through the walls of the fine blood capillaries into the spaces among tissue cells.
WBC.
WBC aka?
Leukocytes.
Protects the body from diseases caused by bacteria, viruses, and other foreign substances.
WBC.
Play a vital role in keeping the body healthy by fighting diseases.
WBC.
Not true cells but are fragments of cytoplasm with nucleus from large bone marrow cells known as megakaryocytes. Clotting of blood.
Blood Platelets.
Blood vessel damaged and long sticky strand.
Fibrinogen (former) and fibrin (formed).
It traps platelets, which collect to form a clot and seal the wound. Clot becomes hard, forming a scab.
Fibrin.
The process of blood cell formation is called?
Hematopoiesis.
RBC, WBC, and Blood Platelets are all formed in the?
Bone marrow.
Three types of blood vessels:
Arteries, veins, and capillaries.
Blood vessels the move blood away from the heart.
Arteries.
Move blood with wastes toward the heart.
Veins.
A flap of tissue that prevents the backflow of blood and keeps it in one direction.
Valve.
Diffusion, arteries and veins are connected by this.
Capillaries.
Sometimes referred to as the “other” circulatory system. Tiny bean-shaped structures called lymph nodes.
Lymphatic system.
Collects and recycles fluids, it also helps fight bacterial and viral infections.
Lymphatic system.
Transports oxygen-depleted blood from the heart to the lungs. Oxygenates the blood.
Pulmonary Circulation.
Carries oxygenate blood from the heart to the organs and tissues Moves blood from the heart to all of the body organs and tissues, except the heart and lungs.
Systematic Circulation.
Distribute water and carry nutrients up and down a plant. Vessels.
Transport or Vascular Tissues.
Has two functions: carry H2O and dissolve mineral NaCl from the roots to the stems and leaves, and provide mechanical support within the plant.
Xylem.
One type of xylem cell found in all vascular plants.
Tracheid.
Flowering plants have another xylem cell called?
Vessel.
Conducts manufactured food from the green parts of the plant, sugars too. Sieve tubes
Phloem
Process of transporting manufactured food by the phloem tissue is called?
Translocation.
Transports substances between the roots and the leaves. In flexible and green plan
Vascular tissue.
Flexible and green plants.
Herbaceous plants.
Vascular bundles consist of?
Xylem and phloem.
Tiny pores in surfaces of leaves.
Stomata.
When stomata opens, water diffuses out of leaf. Loss of water.
Transpiration.
Contains a column of water that extends from the leaves to the roots.
Xylem.
Roots take in water from the soil by diffusion.
Osmosis.
