Human Anatomy and Physiology Answers

In experiment using cellulose bag of starch solution placed in iodine solution, what is occurring? Diffusion, osmosis, or both? Please explain answer, thank you!

if a patient is infused with an isotonic saline solution, where will the fluid end up? Extracellular environment? Intracellular environment? Both? Can you please explain your answer? Thank you so much!

Why does the breakdown of glucose in the body lead to acidosis?

Romeo is taking scuba diving classes, and is confused as to why he should not hold his breath under water while breathing from the air tank. What would you tell him?

factors influencing transport of oxygen

What occurs when acid is added to a solution with a pH of 7?

Explain how monochromatic twins share a placenta?

How does blood flow from the right hand to the heart?
How does blood flow from the pancreas to the heart?
Details where gas exchange occurs,Chambers and valves ect.

Under highly-controlled conditions, a small sample of the military-grade nerve gas NOVICHOK is dissolved in the extracellular solution. How does this poison impact the function of the muscle-nerve preparation and muscle directly as above?

Hi! My biology teacher gave us exam revision:


What receptors (listed down below) would be strongly activated during/straight after a “fight or flight” response and why? (related to sympathetic and parasympathetic systems)

- Testosterone receptors expressed by skeletal muscle

- Muscarinic receptors expresses by smooth muscle cells of small intestines

- Beta-adrenergic receptors in cardiac myocytes

- Nicotonic acetylcholine receptors on sweat glands

- Acetylcholine receptors in autonomic ganglia