Nervous and Reproductive systems review

_____is a single, long fiber; conducts impulses away from the cell

axons

nerve cells that do not contain myelin for the____the brain

grey matter

twins that come from the same egg are called___and those that come from differents eggs are called____

identical/fraternal

what is the function of the myelin sheath?

insulate axons, gaps in the sheath are called nodes of ranvier

the___part of the nervous system determines where information is sent

integrative function

_____is the process of passing on DNA from parent to offspring

reproduction

the parasympathetic nervous system control__and___

rest/digest

_____from the myelin sheath on the axon

schwann cells

the___part of the nervous system gathers info from receptors in the body

sensory function

____is the organ that maintains an environment for accepting a fertilized egg

uterus

_____are tubes sperm travel tat joins with the urethra

vas deferens

____procedure where the vas are cut to prevent sperm leaving (and fertilizing and egg)

vasectomy

a____is a fertilized egg cell

zygote

the two parts of the autonomic nervous system are___and___

parasympathetic/sympathetic

the______attaches to the fetus via the umbilical cord, supplies nutrients to the fetus during pregnancy. it is expelled after the baby is born

placenta

_____is the hormone that regulates menstruation

progesterone

___produces the seminal fluid

prostate glands

if a child is a female will have___chromosomes if they are male they and have an_____and____chromosome

2x/x/y

there are___pair of spinal nerves and_____pairs of peripheral nerves

31/12

_____stimulates muscle contraction

acetylcholine

_______is a procedure done to test the fetal cells for abnormalities, such as chromosome numbers

amniocentesis

___is a progressive degeneration of nerve cell in the spinal cord and brain

amyotrophic lateral sclerosis (ALS)

the____nervous system control the smooth muscle, glands, and voluntary functions in the body

autonomic

the central nervou system(CNS) is made up of the_____and_____

brain/spinal cord

_____is a condition where the baby comes out rear or feet first instead of head first

breech birth

___contains the nucleus and other organelles

cell body

the two parts of the nervous system are the____and the__

central nervous system/peripheral nervous system

____baby is surgically removed from the mother

cesarean section

_____is what the baby is called from 8 weeks on

cetus

_____refers to the point at which the egg is fertilized

conception

what is the overall function of the nervous system?

coordinate the body's systems by receiving and sending information; maintaining homeostasis

nervous system pathway

dendrite-->cell body--->along axon-->synapse-->dendrite

____are much shorter, more numerous, receive information

dendrites

__control mood, happiness

dopamine

______is a condition where the fertilized egg attaches (or implats) someplace other than the uterus, most often in the fallopian tube

ectopic pregnancy

______collects mature sperm which is eventually propelled through the vas deferens

epididymis

_____is a procedure to help manage the pain during labor

epidural

______caused by excessive electrical activity within networks of neurons in the brain

epilepsy

____is the hormone that is responsible for the appearance of secondary sex characteristics of female

estrogen

fertilization usually occurs in the____

fallopian tube

____is the process of a sperm joining with the egg

fertilization

the sympathetic nervous system control the____

fight or flight

__is another name for sex cells

gametes

_____is the process of the uterus contracting to move the child down the birth canal

labor

____is the process of shedding the uterine lining and works on a______cycle

menstruation/28 day

the____part of the nervous system, respond to signal, homeostasis

motor function

_____is a disease where the myelin around the nerve fibers is lost (autoimmune)and forms scar tissue called sclerosis. nerves cannot conduct impulses to and from the brain

multiple sclerosis(MS)

the_____insulation surrounding axons that makes the signal(action potential) travel faster

myelin

nerve cells that are myelinated (contain__)and from the_____of the brain

myelin/white matter

the peripheral nervous system (PNS) is made up of the______

nerves throughout your body

_____masses of nerve cells that transmit information

neurons

___are released into the synapse to complete the signal from one neuron to another

neurotransmitters

a_____is a chemical messenger in the nervous system

neurotransmitters

the____are gaps in the insulation (cause the signal to jump to make it go fater

nodes of ranvier

___is where the eggs are produced through cell division (MEIOSIS)

ovary

the___nervous system control the skeletal/voluntary movements of the body

somatic

the___junction between two communicating neurons

synapse

__makes sperm cia meiosis

testis

_______is the hormone responsible for many of the male characteristics

testosterone

what determines the sex of a child

the chromosomes