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
