CELLS
The control center of the cell
Nucleus
What is the toughest layer of the skin?
Stratum corneum
How many strands of hair does the average person lose daily?
40-100 strands
What two specific glands are found in the dermis?
Sebaceous and Sudoriferous glands
Central core of the hair strand, also referred to as pith or marrow.
Medulla
what is the outer surface of the cell?
Cell membrane
What is the layer of the epidermis that is exfoliated?
Stratum disjunction
An oval shaped follicle would mean that the hair strand is
Wavy to curly
What gland produces sebum?
The sebaceous gland
Mitosis takes place in this area of the bulb
Germinal matrix
A colorless, gel-like substance containing water, salt and nutrients from food.
Protoplasm
Layer of the epidermis that is also know as the "prickle cell layer"
Stratum Spinosum
What is the technical name for the hair that grows on the scalp?
Capilli
What gland is larger than eccrine glands, located in the under arms, genitals, nipples and eyelids?
Apocrine glands
What part of the hair structure acts as storage for stem cells?
Outer root sheath
Organelles in cytoplasm that take nutrients, break them down and create energy molecules for the cell.
Mitochondria
What two layers make up the Dermis?
Papillary and Reticular.
During what phase is the dermal papilla separated from the follicle?
Telogen phase
Endocrine glands are ductless glands that release their secretions into the __________.
bloodstream
Pilosebaceous unit
What are the four main phases of the cell cycle?
Prophase, Metaphase, Anaphase, Telophase
Hemidesmosomes
What is the cluster of cells needing nourishment to grow into a fully developed hair follicle?
Primitive hair germ
Which sudoriferous gland is most abundant on the forehead, palms of hand and soles of feet?
Eccrine gland
The inner root sheath has three layers. What are these layers called?
Henle's layer, Huxley's layer, cuticle layer