Gas exchange takes place in this structure of the lungs

type of membrane that allows gas exchange in the lungs

path air in the lungs

smallest branches of the bronchial tree

midline partition which separates the hollow nasal cavity

common name for the trachea

common name for the larynx

most important muscle in the breathing process

Prepares food for absorption, absorbs digested products, water adsorption, waste elimination

a soft, partially digested liquid

enzyme found in saliva breaks chemical bonds between the sugar molecules and starch

tiny structure absorbs digested nutrients from the digestive tract in the small intestine

this organ of the digestive system extracts water from digested food

Movement through digestive tract by wavelike contractions

chewing

swallowing

sphincter lets the food into the stomach

sphincter sends food out of the stomach and into the duodenum

too much water absorbed by large intestines

not enough water absorbed by large intestines

Filters the blood, helps with body fluid regulation

organ that filters the blood

tiny structures found in the kidney creates urine

blood vessel brings blood to the kidney

blood vessel takes blood away from the kidney

structure carries the urine to the bladder

main divisions of the central nervous system

Sympathetic division, Parasympathetic division, and Visceral Sensory Division

"flight or fight" response

coordinate body's normal resting activity

type of neuron sends information from the limbs to the central nervous system (CNS)

type of neuron sends information from the (CNS) to the limbs

Receptor -> afferent neuron -> interneuron -> efferent neuron -> effector

Stimuli -> sensory receptor -> CNS-> motor neuron -> effector

ions that can diffuse across a neuron's membrane, when the neuron is at rest

part of the brain that can influence the release of hormones or the endocrine system

part of the brain that receives information from sensory receptors in the body

resting membrane potential of electrically excitable cells in the human body

Clouding of the lens of the eye

bones of the middle ear

forms images on the retina

average age of menapause

hormone that causes the follicle to rupture and the egg to be expelled

ovulation would be most likely to occur

Blood levels of estrogen and progesterone decrease

Promotes male sexual characteristics, regulates muscle development, fluid and electrolyte balance, inhibits FSH and LH

secretion of human chorionic gonadotropin (HCG), will peak in the placenta

when a fetus heart begins to beat

stage one of labor will last

average age to begin menstration

boys usually complete the rapid growth stage at this age

second stage of labor

birth weight usually double during these months

birth weight usually triples

the fertilized egg embeds somewhere other than the uterus

during pregnancy can give birth to babies with disorders causing mild or severe physical and mental birth defects.

the natural loss of a fetus

birth defect where mouth doesn't form correctly

buildup of fluid within the brain

transport fluids, part of bodies defense system