Nervous System
The neuroglial cell that functions to secrete and circulate cerebrospinal fluid for the CNS is _______
ependymal cell
taste is interpreted in the ___________ cortex of the brain
gustatory
This is a type of white blood cell that produces histamine and heparin.
Basophil
This gland in the endocrine system makes T cells for our immune system
Thymus
What is the function of the digestive system?
The breakdown of food and the absorption of the resulting nutrients by cells.
The brain structure that is the relay for all incoming sensory information
thalamus
This type of equilibrium senses the position of the head maintaining stability and posture when the head and body are still.
Static Equilibrium
Which blood types can donate blood to someone with AB- blood?
A-
B-
AB-
O-
In the thymus, the hormone thymosin stimulates the maturation of which type of cell?
lymphocytes
This digestive system organ is the body’s largest internal organ. It has numerous functions one of which is to store glycogen, iron and vitamins A, D, and B12
Liver
_________________ functions to control fight or flight while ____________________ controls rest and digest
The sympathetic NS, the parasympathetic NS
These photoreceptors help us see in dim light. They contain the light sensitive pigment called rhodopsin.
Rods
The process of making red blood cells is known as
Erythropoiesis
Name three organs in the lymphatic system
spleen
thymus
These structures in the kidney produce our urine
Nephrons
List the three primary functions of the nervous system
sensory input, integration, and motor output
The ___________________ connects the middle ear to the back of the nasal cavity and maintains equal air pressure on both sides of the eardrum.
Auditory tube (eustachian tube)
Describe what's happening in the heart during a P, QRS, and T wave
P - atrial depolarization
QRS- ventricular depolarization (hides atrial repolarization)
T- ventricular repolarization
Describe 2 functions of the lymphatic system
Transport excess fluid away from spaces in tissues
This structure in the respiratory system consists of branched, mucous membrane-lined tubular airways, leading from the trachea to the microscopic air sacs of the lungs called alveoli
bronchial tree
List the events of an Action Potential
At -70mV the neuron is at resting membrane potential.
A stimulus of +15mV arrives.
At -55mV Na channels open and Na+ rushes in.
At +30 mV Na channels close and K channels open. K+ rushes out.
At -70mV the axon returns to resting membrane potential and the next part of the axon is stimulated.
Name three parts of the eye and describe their function
Cornea - clear outer covering where light enters the eye
Ciliary body - hold the lens and adjust its shape
Lens - refracts and focuses incoming light
Iris- adjusts the size of the pupil and gives the eye it's color
Pupil- The dark hole in the middle of the iris that dilates or constricts based on the iris's muscles.
Retina - place where light is converted to electrical impulses
Optic Nerve - carries visual signals to brain
Describe the locations of the heart and vessels that blood moves though in passing from the superior vena cava to the lungs
right atrium
tricuspid valve
right ventricle
pulmonary valve
pulmonary trunk
right and left pulmonary arteries
Give 3 examples of a nonspecific defense and 1 example of a specific defense
Nonspecific: skin, hair, mucus, fever, NK cells, inflammation, macrophages
Specific: Plasma B cells, Cytotoxic T cells
Describe what happens to the lungs to allow for expiration
The diaphragm relaxes and pushes up on the lungs. The pressure inside the lungs increases above atmospheric pressure, air flows out to the atmosphere