Chap 3 - Skin & Blood.txt

• Epidermis
• Dermis
• Subcutaneous tissue

Outermost layer of the skin comprised of dead or dying cells

Fatty secretion of the sebaceous gland that helps keep skin pliable & waterproof

True skin (aka. corium); layer of tissue producing the epidermis & housing the structures , blood vessels & nerves

Glands w/in the dermis secreting sebum

Glands w/in the dermis that secrete sweat

Body layer beneath the dermis

Production & development of blood cells; consists of bone marrow, liver, spleen, kidneys, & blood

Cell from which the various types of blood cells can form

Process thru which pluripotent stem cells differentiate into various types of blood cells

Hormone responsible for RBC production

• Plasma
• Formed elements
• RBC
• WBC
• Platelets

Thick, pale yellow fluid that makes up the liquid part of the blood

Red Blood Cell (RBC)

O₂-bearing molecule in RBCs; made up of iron-rich red pigment called heme & protein called globin

Partial pressure of O₂; pressure exerted by a given component of a gas containing several components

Partial pressure of carbon dioxide

Phenomenon in which a decrease in PCO₂ causes an increase in the quantity of O₂ that binds w/ the hemoglobin

Chemical in RBCs that affect hemoglobin's affinity for O₂

Process of producing RBCs

Destruction of RBCs

Trapping of RBCs by an organ

The packed cell volume of RBCs per unit of blood

White Blood Cell (WBC)

Movement of WBCs in response to chemical signals

Process in which WBCs engulf & destroy an invader

Process thru which stem cells differentiate into the WBCs immature forms

• Myeloblasts
• Monoblasts
• Lymphoblasts

Condition in which the body makes antibodies against its own tissues

Nonspecific defense mechanism that wards off damage from microorganisms or trauma

Blood platelet

Combined mechanisms that work to prevent or control blood loss

Process thru which plasmin dismantles a blood clot

Clot formation