final study guide 101-1 Flashcards by matt chronister

4 elements of the human body

OXYGEN
HYDROGEN
CARBON
NITROGEN
CALCIUM

How well did you know this?

Not at all

Perfectly

the electrical activity developed in a muscle or nerve cell during activity

ACTION POTENTIAL

How well did you know this?

Not at all

Perfectly

The fron section of the eye’s interior where aqueous humor flows in and out providing nourishment to the eye and surrounding tissues

ANTERIOR CHAMBER

How well did you know this?

Not at all

Perfectly

Blind Spot of the eye

The blind spot is the location on the retina known as the optic disk where the optic nerve fiber exit the back of the eye. Because there are no cones or rods at this point on the retina, there is a very small gap in the visual field

The blind spots in each eye are aligned symmetrically so that most of the time, one eye’s field of vision will compensate for the loss of vision in the other eye.

How well did you know this?

Not at all

Perfectly

what type of tissue is blood

Blood is considered to be a connective tissue in which the intercellular material is plasma for blood

How well did you know this?

Not at all

Perfectly

What is cartilage

Cartilage is a stiff yet flexible connective tissue found in many areas in the body, including the joints between bones, the rib cage, the ear, the nose, the elbow, the knee, the ankle, the bronchial tubes and the intervertebral discs. It is not as hard and rigid as bone but is stiffer as less flexible than muscle.

It is composed of specialized cells called chondrocytes

Cartilage is classified in 3 types:
ELASTIC CARTILAGE
HYALINE CARTILAGE
FIBROCARTILAGE

Unlike other connective tissues, cartilage does not contain blood vessels.

Compared to other connective tissues, cartilage grows and repairs more slowly

How well did you know this?

Not at all

Perfectly

Conjunctivitis

An inflammation of the conjunctiva that is uaually caused by an infection or allergy; also known as PINK EYE

How well did you know this?

Not at all

Perfectly

The transparent outer surface of the eye covering the iris and pupil

The clear front window of the eye, which transmits and focuses light into the eye.

CORNEA

How well did you know this?

Not at all

Perfectly

The shaft of central part of a long bone

DIAPHYSIS

How well did you know this?

Not at all

Perfectly

What is the EPIPHYSEAL LINE

The part of the bone that replaces the epiphyseal growth plate in long bones once a person has reached their full adult height

An epiphyseal line looks like a thin dark streak that stretches horizontally across the rounded ends of the bone.

Formation of the epiphyseal line takes place over many years

The presence of an epiphyseal line on the long bones can be used to indicate the age of skeletal remains

How well did you know this?

Not at all

Perfectly

What is the EPIPHYSEAL PLATE

The area at the long end of a bone that contains growing bone

As people develop, the bone grows longer as a result of activity inside this area

These plates permit growth after birth, allowing the long bones of the body to extend and a person to grow as he or she reaches maturity

How well did you know this?

Not at all

Perfectly

Stiffening of the joints and muscles of a body after death

RIGOR MOTIS

How well did you know this?

Not at all

Perfectly

The technical name for table sugar, cane sugar, or whit sugar, is made of one glucose molecule and one fructose molecule bound together

SUCROSE

How well did you know this?

Not at all

Perfectly

Refers to a form of arthritis caused by deposits of needle-like crystals of uric acid

GOUTY ARTHRITIS

Is one of the most painful rheumatic diseases

Usually strikes a single joint, most commonly the big toe

Men are more likely to develop than women

How well did you know this?

Not at all

Perfectly

An empty space, a gap

A cavity, space, or depression, especially in a bone containing cartilage or bone cells

LACUNAE

How well did you know this?

Not at all

Perfectly

a measure of the acidity or alkalinity of a fluid

pH
(The pH of any fluid is the measue of its HYDROGEN ION (H+). The pH is approximately equal to the negative logarithm of the H+ ion concentration expressed in molarity)

A chronic pathological condition in which the muscles are affected by persistent spasms and exaggerated tendon reflexes because of damage to the central nervous system

SPASTIC PERALYSIS

What is in the Cranial Cavity

BRAIN
PITUITARY GLAND
VARIOUS SPINAL + CRANIAL NERVES
BLOOD VESSELS
MENINGES (membranes surround central nervous system)
CEREBROSPINAL FLUID (shock absorber for brain)

The clear, flexible, curved structure that focuses images on the retina

LENS

A small region in the eye where the nerve endings of the retinal enter the optic nerve

OPTIC DISC

The transparent mucous membrane that line the underside of each eyelid

CONJUNCTIVA

LAYERS OF EPIDERMIS

BASAL LAYER
SQUAMOUS LAYER
STRATUM GRANULOSUM
STRATUM LUCIDUM
STRATUM CORNEUM

A disorder of the sense of balance and equilibrium and the sense of spatial orientation that is caused by repeated motion such as the swell of the sea, movement of a car, or motion of a plane in turbulent air

It is due to irritation of a portion of the inner ear called the labyrinth

symptoms: nausea, vomiting, and vertigo, sweating, general ill feeling

MOTION SICKNESS

The process by which a cell engulfs particles such as bacteria, other microorganisms, aged red blood cells, foreign matter, etc.

PHAGOCYTOSIS

Characteristics of Compact Bone | also called Cortical Bone

1. Closely packed osteons (Haversian Systems) and multiple stacked layers with few gaps 2. Extremely hard and dense (forms the surface of bones) 3. Provides support to body and protects organs 4. Provides levers for movements and stores minerals 5. The center of each osteon is the central canal, a space that houses blood vessels and nerves that supply bone

Characteristics of Spongy Bone | also called Trabecular or Cancellous Bone

1. Is spongy and makes up the bulk of the interior of most bones, including verrebrae 2. Network of irregularly-shaped sheets and spikes of bone 3. There are no blood vessels within the matrix of spongy bone

Characteristics of irregular bone

1. Have complex irregular shapes 2. They do not fit into any other category of bone 3. Many irregular bones are short, flat, notched, or ridged, with extensions that protrude from their many bone parts 4. EXAMPLES: spinal vertebrae, many bones of the face and skull, and hipbones

Functions of Apocrine (Glands)

To cool the surface of the skin and reduce body terperature 2. Go into action during puberty 3. They produce sweat 4. They ascend toward the hair follicle

The most numerous of the 4 main types of papillae, which are arranged in fairly regular rows running parallel to the central groove of the tongue Acts as an abrasive coating, which helps give the tongue a cleaning and rasping action

Filiform Papillae | also called conical papillae

Function of Lens

Helps focus light onto the retina Can also alter shape (accommodation) this allows us to alter the focus of the eye (ex: look from the TV to a book) The lens is also where cataracts form

Causes of Conductive Deafness (occurs when sound is not conducted efficiently through the outer ear canal to the eardrum and the tiny bones of the middle ear)

1. Fluid in middle ear from colds 2. Ear infection 3. Allergies 4. Poor Eustachian tube function 5. Perforated eardrum 6. Benign Tumors 7. Impacted earwax 8. Infection in the ear canal 9. Swimmer's Ear 10. Presence of a foreign body 11. Absence or malformation of the outer ear, ear canal, or middle ear

Characteristics of Collagen Fibers | your organs are held together by a dense network of tough, elastic protein fibers. The most abundant is collagen

1. Stretchability 2. Flexibility 3. Strength and your ability to repair and replace it throughout life in spite of its chemical complexity

An insufficient supply of blood to an organ Usually due to a blocked artery

Ischemia (complete ischemia-no oxygen reaches target area. If not corrected quickly will lead to an infarct) Infarct-(when there is death of tissue with surrounding inflammation due to sudden + complete loss of arterial blood supply)

Functions of Aqueous Humor Aqueous Humor-(thick watery substance filling the space between the lens and the cornea)

1. Maintains the intraocular pressure and inflates the globe of the eye 2. Provides nutrition for the avascular ocular tissues; posterior cornea, trabecular meshwork, lens, and anteriro vitreous 3. May serve to transport ascorbate in the anterior segment to act as an anti-oxidant agent 4. Presence of immunoglobulins indicate a role in immune response to defend against pathogens

Characteristics of Plasma Membrane

1. Extremely thin layer of lipids and protein that forms outer boundary of every cell 2. Controls movement of molecules between the cell and its environment 3. Participates in joining cells to form tissues and organs 4. Plays important role in the ability of a cell to respond to changes in the cell's environment

Characteristics of Reticular Fibers

Short fibers that cluster into delicate networks that cover and support all structures bordering connective tissue. They allow more give than collagen fibers