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Human Anatomy and Physiology

Excretory System

1) How many nephrons are contained in each kidney? about 100 about 1000 less than 100 about a million 2) Which of the following contains the least concentration of glucose plasma nephric filtrate urine 3) What percentage of the glucose in the filtrate is reabsorbed in the nephron? 0%

Nervous System

The junction specialized for the transmission between a neuron and another cell is called a (1) _____ ______. Usually, the signal being sent to the receiving cell is carried by chemical messengers called (2) _____. (3) _____ is an example of this type of chemical messenger, which diffuses across the synaptic cleft, combines with

Nervous System

Nerve cells that conduct messages are called (1) ____. (2) _____ cells, which support and nurture the activities of neurons, make up less than half the volume of the nervous system. (3) _______ neurons respond to specific kinds of environmental stimuli, (4) ______ connect different neurons in the spinal cord and brain, and (5)


An immature egg (oocyte) is released from one (1) ____ of a pair. From each ovary, and (2) _____ forms a channel for transport of the immature egg to the (3) ______, a hollow, pear-shaped organ where the embryo grows and develops. The lower narrowed part of the uterus is the (4) _______. The uterus has a thick layer of smooth m

HUman Biology

51. The structure of a lymphatic vessel is most similar to that of a(n) A. artery. B. arteriole. C. vein D. capillary. 52. The spleen A. is the largest lymphatic organ B. it filters the blood. C. it serves as a blood reservoir. D. all of the above 53. The spleen is much like a lymph node except that the

HUman Biology

28. The outside layer of the heart a. fibrous pleura b. pericardium c. parietal pleura d. peritoneum 29. The superior vena cava enters the __________ of the heart. a. right ventricle b. right atrium c. left atrium d. left ventricle 30. The pulmonary semilunar valve prevents back flow of blood into the __

Human Biology

1. The alimentary tube is around _____ meters long. A. 2 B. 4 C. 6 D. 9 2. The processes of chewing are referred to as ______ A. churning B. mastication C. peristalsis D. deglutition 3. How many teeth does an average adult have? A. 20 B. 32 C. 30 D. 52 4. The term wisdom tooth refers to the _____ toot

HUman Biology

1. Attaches a muscle to a bone. A. Maximus 2. Attaches bones to bones. B. Minimus 3. The attachment of a muscle to C. Antagonist a stationary bone. D. Pronator 4. The attachment of a muscle to E. Supinator a bone that moves. F. Insertion 5. The shortening of a muscle. G. Origin 6. A muscle that cause the main

Human Biology of Body Parts

1.The radius is on the (medial, lateral) side of the forearm. 2. The nose is (inferior, superior) to the mouth. 3. The heart is (dorsal, ventral) to the sternum. 4. The carpals are (distal, proximal) to the phalanges. 5. The sternum is (anterior, posterior) to the vertebral column. Directions: Match the following

HUman Biology

This structure supports the weight of the vetebral column and helps protect organs. a. sternum b. pectoral girdle c. pelvic girdle d. acetabulum What converts to red marrow and produces new red blood cells when blood loss from the body is severe. a. yellow marrow b. spongy bone c. compact bone d. red marrow Wha

HUman Biology

The epidermis is thickest on the : a. mouth b. tongue c. scalp d. soles e. elbow Which of the following is not a function of the Integumentary System ? a. movement b. protection c. temperature regulation d. synthesis of vitamin D e. eliminate waste These skin glands are located only i


Please could you answer these questions as true or false (also attached): 1. An increase in tissue oncotic pressure contributes to edema. 2. Heart failure is an example of a disease state that causes generalized edema. 3. Hypertonic fluid alterations occur when the osmolality of extracellular fluid is below norma

Metabolizer phenotype of CYP2D6

I got 0 out of 15 points for my answer on this problem. I'm thinking I should have received some partial credit. I'm posting the original question, my answer, and the "official" answer. I understand that the given answer is a better method, but won't my proposed method work? I'm looking for some expert, detailed, technical adv


Regardless of bloodtype what is the problem if the Mother is Rh- with an Rh+ baby? 1st baby, and subsequent babies if not addressed? What happens and how? Also, this is a very strange question to ask you, I know, and if you can provide me with any info, advice, just let me know and I'll post it as a new problem and let me k

Change in blood flow

Indentify other organs and tissues in the given table and comment on the change in blood flow through them when an athlete starts from rest to engage in moderate aerobic exercise then intense anaerobic exercise. I am looking for help and advice in completing this question I have to write about 100 words

Tetraalkylammonium compounds

Tetraalkylammonium compounds block non-specific cation channels by sticking into the pore. What would the effect of these toxins be on vertebrate vision? Why? Thank you.

Endocrine system

Regarding the endocrine system. What is used to transmit info-to deliver message after binding to receptor?

Pepsinogen and trypsinogen

Explain briefly why pepsinogen and trypsinogen are released in the digestive system as zymogens. Please be specific.

Cerebral Hemisphere

Why is it so important that the outer portion of the cerebral hemisphere (cortex) is convoluted?


What causes hydrocephalus and why is it more serious in adults than kids?

Alzheimers & dehydration

What part of the brain - where - would be affected if a combative and confused Alzheimer's patient was hospitalized with dehydration? Please explain where the brain may be affected to lead to dehydration.

Biological Radioactivity Test - Theoretical

Remember the nuclear accident at Chernobyl (former Soviet Union - now the territory of Ukraine) in 1986? A scientist suspects that the food in a nearby ecosystem may have been contaminated with radioactive nitrogen over a period of months. Which substances in plants and animals could be examined for radioactivity to test


Using the negative feedback system, explain how osmoreceptors and CO2 receptors maintain water balance and respiratory rates. Include a diagram. How are micturation and defecation reflexes different? NOTE: Moved from Physiology to Biology to expose question to different Online TAs.