Skeletal/Muscles
70% of bone is made of this mineral, giving it hardness and strength
Calcium
The stomach produces this thick, acidic semi-liquid paste after breaking down food.
Chyme
The respiratory system breathes in this gas and breathes out this gas.
Oxygen and CO2
Humans have this type of circulatory system, one loop goes to the lungs and one goes to the rest of the body, both running simultaneously
Double Circulatory System
Where are your kidneys located
back of adbdominal avity
Muscles can only do this, they cannot push
Contract
The stomach produces this extremely strong acid with a pH of 1.5–3.5 that kills bacteria and breaks down food
Hydrochloric Acid
This large dome-shaped muscle sits below the lungs, is the primary breathing muscle, and is also what causes hiccups
Diaphragm
This percentage of blood volume is plasma, the straw-colored liquid that carries nutrients, hormones, and waste."
55%
Urine travels from the kidney to the bladder through this tube
ureter
This tough tissue connects muscle to bone. The Achilles is the strongest one in the body
Tendon
The section of the small intestine where most nutrients (sugars, amino acids, fatty acids, and vitamins) are absorbed into the bloodstream
Jejunum
During gas exchange, gases move from areas of _____ pressure to areas of ___ pressure
high to low
What causes the "lub" and "dub" sounds in a heartbeat are caused by what?
Valves closing
"This hormone produced by the kidneys signals bone marrow to produce more red blood cells, and has been famously abused by endurance athletes to boost performance
EPO (erythropoietin)
This is the longest and strongest bone in the body
Femur
The large intestine reabsorbs this from remaining waste, which is why moving through too fast causes dehydration
Water and Electrolytes
This protein inside red blood cells binds to oxygen — 4 molecules at a time — and rapidly loads up when blood passes through the lungs
Hemoglobin
Name three factors that can cause high blood pressure
teacher's discretion
This is a long/deep tube in the nephron where urine becomes concentrated and water is reabsorbed
Loop of Henle
Name the three types of muscles
Smooth, skeletal, muscle
These little arms coat the inside of the small intestine, increasing surface area and helping with absorption of nutrients
This compound has a higher affinity to hemoglobin than oxygen does, and is very dangerous
carbon monoxide
When a heart valve does not completely close, blood leaks backwards and creates turbulent flow, producing this condition and a whooshing sound between beats.
Heart Murmur
The three internal regions of the kidney, from outer to inner
renal cortex, renal medulla, and renal pelvis