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Delicate structure that encloses the cytoplasm and forms the outer boundary of a cell.
What are the four stages of Mitosis?
Prophase- Chromatin becomes organized
Metaphase- Chromosomes align, nucleoulus disappear
Anaphase- Two daughter cells start to divide
Telophase- Cell division is completed
What do epithelial cells produce?
Keratin which waterproofs the skin and protects the epidermis and underlying structures from injury, drying and invasion of foreign organisms.
What is the Dermis composed of?
Connective tissue, collagen, elastic fibers, blood vessels, hair follicles, nerve ending, smooth muscles and seat/oil glands.
What are Sudoriferous glands and what do they do?
Sweat glands that provide cooling by producing perspiration which evaporates when the body is hot.
The point of contact between bones and cartilage or teeth and bones alson known as a joint,
Which ribs are known as "True Ribs"?
The first seven pairs that arrach directly to the sternum and vertebrea
What are the three sections of the pelvic girdle?
Ishium-articulates with the ilium and pubis
Pubis-symphysis pubis joins the two pubic bones
Thin receptive branches that differ greatly in size, shape and number and transmit impulses to neron cell bodies.
Inferior most portion of the brain before the spinal cord. Controls functions like breathing and heart beat.
What are the three layers of the Meninges?
1.Dura Mater-Tough outter layer
2. Arachnoid Membrane-delicatd middle layer made of web like connective tissue
3. Pia Mater- vascular inner layer that adhere brain to the spinal cord
Clear, watery liquid that surrounds the brain. Its a protective cushion and exchanges nutrients and waste.
Medical movement of the two eyeballs so they are both directed toward the object being viewed.
Tympanic Membrane (Eardrum)
A thin membran stretched across the auditory canal that separates the outer middle ear. The function is to transport sound to the auditory ossicles through vibration.
Three ossicles (bones) that transmit vibrations from the tympanic membrane to the fluid in the inner ear.
Fluid located in the inner ear that ripples when the issicles move, which causes the cochlea to move
A small snail shaped organ that convers the mechanical ripples to the endolymph into nerve impulses
Three semicircular canals situated perpendicularyly to each other in the temporal bone that stimulates nerve endings.
What is the purpose of blood vessles and what are they made of?
To carry blood throught the body and made of smooth involuntary muscles.
Flap of tissue that covers the entrance to the larynx to prevent food from entering the trachea
Organ located in the upper left quadrant of the adbomen that stores red blood cells and destroy red blood cells also makes white blood cells
Hormone produced by the pancrease and released into the bloodstream which allows sugar to lave the blood and enter the cells
A structure in the brain that creates chemicals that are secreted to the pituitary gland to stumulate the release of hormones.
Secretes the iodine containing hormon thyroxin which controls the rate of cell metabolism.
What are the charactistics of Hypothyroidism
1. Decreased basal metabolism
2. Absence of sweating
3. Constan fatigue
4. Weight gain
5. Slow heart rate
Inflammation of the GI tract marked by bouts of diarrhea abdominal cramping and fever
Movement of food
Peristalsis moves food throught the gastrointestinal tract through successive muscular contrations
Structure where the greatest amount of chemical digestion and food absorption occurs
Abnormal pregnancy in which the fertilized egg implants itself outside the uterine cavity
What is ovulation?
The release of a oocyte(egg) from the ovary into the fallopian tube. Occurs normally on the 14th day of the cycle
How much urine does the average adult excrete in 24 hours?
1-2 liters with 95% being water and 5% waste products
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