Save
Upgrade to remove ads
Busy. Please wait.
Log in with Clever
or
show password
Forgot Password?
Don't have an account?  Sign up 
Sign up using Clever
or
Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account. Your email address is only used to allow you to reset your password. See our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't Know
Remaining cards (0)
Know
0:00
edit
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

Brett Lebouef

weeks 7-13

QuestionAnswer
What is the primary function of the digestive system? Breakdown of food into absorbable nutrients and elimination of waste.
Where does most nutrient absorption occur? The small intestine (especially the jejunum).
What drives the movement of air into the lungs? Pressure gradients created by diaphragm contraction (Boyle’s Law).
Where does gas exchange occur? Across the alveolar–capillary membrane.
What gas primarily controls breathing rate? CO₂ (via changes in blood pH).
What is tidal volume? The amount of air inhaled/exhaled in a normal breath.
What are the functions of the lymphatic system? Fluid balance, lipid absorption, and immune defense.
What do B cells do? Produce antibodies for humoral immunity.
What do T cells do? Provide cell-mediated immunity by targeting infected or abnormal cells.
What is the pacemaker of the heart? The sinoatrial (SA) node.
What is the primary function of red blood cells? Transport oxygen using hemoglobin.
What determines blood pressure? Cardiac output × peripheral resistance.
What structure in the eye controls the amount of light entering? The iris.
What gland is the “master gland”? The pituitary gland.
What hormone regulates metabolism? Thyroid hormones (T3 and T4).
What are the two major divisions of the nervous system? Central nervous system (CNS) and peripheral nervous system (PNS).
What does the autonomic nervous system control? Involuntary functions (heart rate, digestion, respiration).
What is the basic functional unit of the nervous system? The neuron.
What creates the resting membrane potential? Ion gradients maintained by the Na⁺/K⁺ pump.
What triggers an action potential? Membrane depolarization reaching threshold.
What is saltatory conduction? Jumping of action potentials between nodes of Ranvier in myelinated axons.
What is a synapse? Junction where neurons communicate via neurotransmitters.
What neurotransmitter is used at neuromuscular junctions? Acetylcholine (ACh).
Created by: brettlebouef
 

 



Voices

Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!
"Know" box contains:
Time elapsed:
Retries:
restart all cards