The phase of the heartbeat when the heart muscles squeeze and push blood out of the chambers. This creates the higher number in a blood pressure reading.

The phase when the heart relaxes after squeezing. During this time, the chambers refill with blood. It is also the lower number in a blood pressure reading.

The smallest blood vessels. They link arteries and veins and are the main site of exchange.

Parasympathetic Division

Your “rest and digest” system that slows the heart and helps digestion and recovery.

Light-detecting cells in the retina that let you see.

The gland that controls hormone release from other endocrine glands.

Releases insulin and glucagon to control blood sugar levels.

Fragments that help blood clot when you get a cut.

Electrical Conduction System

A group of cells that create and spread electrical signals to keep the heart beating.

Proteins made by B-cells that attach to germs and help destroy them.

The percentage of blood volume made up of red blood cells.

A substance made by cells in the alveoli that reduces surface tension and keeps the air sacs open.

A substance made by the liver that helps break down fats into smaller droplets for digestion.

The process where the kidney takes back useful substances (water, glucose, ions) from the filtrate.

“Fight or flight” branch of ANS; increases heart rate and energy use.

Narrowing blood vessels to raise blood pressure.

Filters blood, removes old RBCs, and supports immune function

Local defense reaction causing redness, heat, swelling, and pain.

Flap covering trachea during swallowing.

Air moved in/out of lungs during normal breathing.

Muscles between ribs assisting lung expansion and contraction.

Sensors that detect CO2, O2, and pH to control breathing.

Space between pleura layers containing fluid for smooth breathing.

Bony ridges in nasal cavity that increase surface area and airflow turbulence.

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anatomy 2

week 6 - 12

Question	Answer
Systole	The phase of the heartbeat when the heart muscles squeeze and push blood out of the chambers. This creates the higher number in a blood pressure reading.
Diastole	The phase when the heart relaxes after squeezing. During this time, the chambers refill with blood. It is also the lower number in a blood pressure reading.
Capillaries	The smallest blood vessels. They link arteries and veins and are the main site of exchange.
Parasympathetic Division	Your “rest and digest” system that slows the heart and helps digestion and recovery.
Photoreceptors	Light-detecting cells in the retina that let you see.
Pituitary Gland	The gland that controls hormone release from other endocrine glands.
Pancreas	Releases insulin and glucagon to control blood sugar levels.
Platelets	Fragments that help blood clot when you get a cut.
Electrical Conduction System	A group of cells that create and spread electrical signals to keep the heart beating.
Antibodies	Proteins made by B-cells that attach to germs and help destroy them.
Hematocrit	The percentage of blood volume made up of red blood cells.
Surfactant	A substance made by cells in the alveoli that reduces surface tension and keeps the air sacs open.
Bile	A substance made by the liver that helps break down fats into smaller droplets for digestion.
Reabsorption	The process where the kidney takes back useful substances (water, glucose, ions) from the filtrate.
Sympathetic	“Fight or flight” branch of ANS; increases heart rate and energy use.
Vasoconstriction	Narrowing blood vessels to raise blood pressure.
Spleen	Filters blood, removes old RBCs, and supports immune function
Inflammation	Local defense reaction causing redness, heat, swelling, and pain.
Epiglottis	Flap covering trachea during swallowing.
Tidal Volume	Air moved in/out of lungs during normal breathing.
Intercostal Muscles	Muscles between ribs assisting lung expansion and contraction.
Chemoreceptors	Sensors that detect CO2, O2, and pH to control breathing.
Pleural Cavity	Space between pleura layers containing fluid for smooth breathing.
Nasal Conchae	Bony ridges in nasal cavity that increase surface area and airflow turbulence.

Created by: jayveejvr

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