Anatomy and Physiology

Help Resolving Conflicting Information about the Extraembryonic Mesoderm

Help Resolving Conflicting Information about the Extraembryonic Mesoderm

Hi all!

I have a bit of a problem with letting things go, and this often hampers my studying! I was reading about the formation of the extra-embryonic membranes, and decided to spend some time researching the extra-embryonic mesoderm. Thes

galpinj   305   1 Reply

habiba

Effect of Stimulus Strength on Action Potential Generation ● Effect of Frequen

Effect of Stimulus Strength on Action Potential Generation ● Effect of Frequen

Change in Membrane Potential From Axon Hillock to Axon
Values of Maximal Depolarization of Membrane Potential (mV) at Different Stimulation Voltages, by Location
   Stimulation Voltage
Location   0V
(no stimulation)   2V   4V   6V   8V
A

dotdot13us   503   3 Replies

bio_man

What causes plateau phase to end?

What causes plateau phase to end?

plz help me.

josharma   221   1 Reply

johnherman

Secretion vs. Excretion

Secretion vs. Excretion

Hi guys,

I've spent a good hour trying to separate these two terms, but still have some trouble. From what I've learned, secretion is the active movement of various molecules outside of the cell, whereas excretion is the passive

galpinj   334   1 Reply

psyche360

A lower than normal level of potassium in the blood is referred to as

A lower than normal level of potassium in the blood is referred to as

A lower than normal level of potassium in the blood is referred to as

Lalovasquez   300   1 Reply

bio_man

Gas exchange in lungs

Gas exchange in lungs

Hi everyone!

Quick question about gas diffusion. Why is it that the diffusion of gases, like oxygen, are dependent on the partial pressure of oxygen and not the total pressure of that system? Wouldn't other molecules in the air influe

galpinj   195   5 Replies

bio_man

Are sympathetic and parasympathetic systems activated at the same time or they a

Are sympathetic and parasympathetic systems activated at the same time or they a

are sympathetic and parasympathetic systems activated at the same time or they are like on-off switches and in one time one of them can be activated?

ehstvk   195   1 Reply

psyche360

Which of the following is/are true regarding this difference in stimulation methods?

Which of the following is/are true regarding this difference in stimulation methods?

The PhysioEx experimental muscle stimulation differs from the in vivo stimulation via the nervous system even
though the graded muscle response following both stimulation methods is similar. Which of the following is/are true regarding this diff

bball2896   996   1 Reply

bio_man

Question about pH and HCl in the stomach

Question about pH and HCl in the stomach

Hey guys, quick question:

Why do parietal cells secrete both hydrogen ions and chloride ions into the stomach? Wouldn't it be sufficient to just secrete H+ ions in order to lower the pH? Why bother secreting Cl- ions?

Thank

galpinj   190   4 Replies

galpinj

Question about exocrine and endocrine glands

Question about exocrine and endocrine glands

Hello guys,

I've been learning about exocrine and endocrine glands, and I've just got a question about the terminology. From what I understand, exocrine glands tend to have ducts, be tubular/saclike in appearance, and secrete the

galpinj   304   1 Reply

bio_man

Briefly identify and describe the structure and function of a typical motor neur

Briefly identify and describe the structure and function of a typical motor neur

I'm going over my textbook but having some difficulties coming up with the answer for this one. Thank you for any help!!!

Briefly identify and describe the structure and function of a typical motor neuron.

Bella Di   694   1 Reply

psyche360

What hormone is responsible for production of milk

What hormone is responsible for production of milk

what hormone is responsible for producing milk

cherab   275   1 Reply

bio_man

What are APGAR scores used for

What are APGAR scores used for

what are APGAR scores used for

cherab   170   1 Reply

psyche360

Describe and explain the three factors that allow skeletal muscle to generate maximum tension.

Describe and explain the three factors that allow skeletal muscle to generate maximum tension.

PEX-02-04. In Activity 4, you used a multiple stimulus at different rates and recorded a tracing that ran long enough to cross the screen 5 times.
When the muscle was stimulated at 150 stimuli/sec, the trace increased to a maximum value and reac

md_to_be   306   1 Reply

bio_man

Compare and contrast HIV and Leukemia

Compare and contrast HIV and Leukemia

What happens when a patient acquires leukemia versus what happens when they acquire HIV. Describe what happens at the chemical,microscopic,cellular and gross anatomy levels. Include how the B cells and T cells maturation and activation may be affecte

Dr zomboss   279   1 Reply

dairo1

How does the level of PCO2 in the blood affect the blood pH level?

How does the level of PCO2 in the blood affect the blood pH level?

2.   How does the level of PCO2 in the blood affect the blood pH level?

LDWilli87   359   1 Reply

habiba

Stage of developement of an erythrocyte

Stage of developement of an erythrocyte

question: _____________ is the stage of development in the life of an erythrocyte during which it leaves the bone marrow.

I put the answer "erythropoiesis," but it was marked wrong. If it is not erythropoiesis, then what is the c

sally_hayes   904   1 Reply

bio_man

Why does coffee stimulate the need for defecation? Explain, step-by-step.

Why does coffee stimulate the need for defecation? Explain, step-by-step.

Why does coffee stimulate the need for defecation? Explain, step-by-step.

Amandae26   244   1 Reply

kbailey5555

Calculate the lung function for the subject:

Calculate the lung function for the subject:

I have worked out the inspiratory reserve volume to be 1.75dm^3.

I am not sure how to work out the expiratory volume and tidal volume.

I know the vital capacity is the sum of all three.

roseparton   467   N/A

roseparton

A 100 MWCO membrane is in place, 10 mM glucose is placed in the left beaker and

A 100 MWCO membrane is in place, 10 mM glucose is placed in the left beaker and

 A 100 MWCO membrane is in place, 10 mM glucose is placed in the left beaker and 10 mM albumin is placed in the right beaker. Which of the following is true?
A.Albumin and glucose diffuse through the membrane.   
 B.There is no net movement o

hawaiianrush7   261   1 Reply

padre

What protects the contents of the nucleus?

What protects the contents of the nucleus?

what protects the contents of the nucleus

mlefebvre   664   1 Reply

bio_man

Explain how mimicking the SNS might help alleviate an asthma attack

Explain how mimicking the SNS might help alleviate an asthma attack

any help would be greatly appreciated

rrachsoj   2629   1 Reply

Othello2

Help with Identifying some of the heart.

Help with Identifying some of the heart.

View the anatomical models Figure 30.2 (a), (b), (c), and Figure 31.1 from your Laboratory Manual and identify the structures that are described by the following statements.

a.   Superior heart chambers; atria
b.   Pumps the heart

flow88   419   1 Reply

sem1991

What roles does blood types in our ethnic groups based on disease?

What roles does blood types in our ethnic groups based on disease?

Summarize some of the commonalities of blood types comparing similar ethnic groups. How can this information be used to advance solutions to specific blood-related diseases? (Include your source)

flow88   292   2 Replies

flow88

The placenta that supports the fetus receives blood from the fetus through the...

The placenta that supports the fetus receives blood from the fetus through the...

The placenta that supports the fetus receives blood from the fetus through the?

a) umbilical arteries
b) ligamentum arteriosum
c) ductus arteriosus
d) ductus venosus
e) none of the above

daveem   555   2 Replies

bio_man

A 12-year-old girl came to the emergency department complaining of severe pain i

A 12-year-old girl came to the emergency department complaining of severe pain i

A 12-year-old girl came to the emergency department complaining of severe pain in her right elbow.  She had fallen from a tree about 2 weeks before and had deeply lacerated her elbow.  She had not had any medical care for the laceration.&nb

kgray007   1025   1 Reply

sem1991

The enzyme involved in the conversion of carbon dioxide into bicarbonate and hydrogen ions is called

The enzyme involved in the conversion of carbon dioxide into bicarbonate and hydrogen ions is called

The enzyme involved in the conversion of carbon dioxide into bicarbonate and hydrogen ions is called

Amanda Mills   651   1 Reply

bio_man

How would the application of Dihydrokainic acid effect the post synaptic neuron?

How would the application of Dihydrokainic acid effect the post synaptic neuron?

I had tried to find this answer online, but we never went over anything like this in class. I know that this acid inhibits glutamate, but I have no clue what it would do to the post-synaptic neuron.
 
Thank You in advance for the help.

magni243   334   1 Reply

kynurse

What are the two major functional properties of neurons?

What are the two major functional properties of neurons?

Please help??

jennie.delilo   546   1 Reply

bio_man

Assume you have said to a group of your peers that amylase is capable of starch

Assume you have said to a group of your peers that amylase is capable of starch

Assume you have said to a group of your peers that amylase is capable of starch hydrolysis to maltose. If you had not done control tube 1A, what objection to your statement could be raised? What if you had not done tube 2A?

Cyang95   3063   N/A

Cyang95

Recall that Jim could see boats on either side of him. Trace the image of the boats to perception. ...

Recall that Jim could see boats on either side of him. Trace the image of the boats to perception. ...

Recall that Jim could see boats on either side of him. Trace the image of the boats to perception. (include all focusing, transduction, transmission, and perception processes and structures



Identify the components of the homeos

caitisscal   1014   N/A

caitisscal

Where was membrane potential measured?

Where was membrane potential measured?

Where was membrane potential measured?

bewinner   286   1 Reply

bio_man

How will you calculate the oxygen carrying capacity of blood?

How will you calculate the oxygen carrying capacity of blood?

 

areebafatima   350   1 Reply

psyche360

What do you predict would be the breath holding value post exercise?

What do you predict would be the breath holding value post exercise?

3.   What do you predict would be the breath holding value post exercise? Include an explanation of predicted CO2 levels, H+ levels and ph.

brihadley   842   1 Reply

Othello2

Explain how the germinal epithelium gives rise to primordial follicles?

Explain how the germinal epithelium gives rise to primordial follicles?

Explain how the germinal epithelium gives rise to primordial follicles?



When I was researching it, it was said that germinal epithelium doesn't give rise to primordial follicles and my textbooks don't go in dept on ge

missysci   864   1 Reply

doubleu

Describe how the inner ear anatomy leads to nystagmus; what is the physiological

Describe how the inner ear anatomy leads to nystagmus; what is the physiological

Describe how the inner ear anatomy leads to nystagmus; what is the physiological mechanism and purpose?

Amandae26   826   2 Replies

Othello2

My professor says the hypothalamus is part of the cerebrum.....

My professor says the hypothalamus is part of the cerebrum.....

I recently took an exam in which my professor asked, "which is not a component of the cerebrum?". I answered the pons, ...but was a little thrown off, since the thalamus and hypothalamus were also options. It has always been my unders

DreaDurb   254   1 Reply

bio_man

Ca++ is involved at the neuromuscular junction by

Ca++ is involved at the neuromuscular junction by

Ca++ is involved at the neuromuscular junction by

Iota Deuce   270   1 Reply

Othello2

The biological changes associated with adolescence are stimulated primarily by

The biological changes associated with adolescence are stimulated primarily by

The biological changes associated with adolescence are stimulated primarily by

Jalizae0401   1056   1 Reply

Othello2

If cells are placed in a hypotonic solution containing a solute to which the membrane is impermeable

If cells are placed in a hypotonic solution containing a solute to which the membrane is impermeable

If cells are placed in a hypotonic solution containing a solute to which the membrane is impermeable, what could happen?
A)   The cells would swell and cell lysis could occur.
B)   The cells would lose water and crenate.
C)   The cells would

dolby   878   3 Replies

thenriquez