Anatomy and Physiology

querstion about hormones and atp production!

querstion about hormones and atp production!

Epinephrine rapidly causes the breakdown of glycogen to glucose in skeletal muscle in order to produce increased substrate for ATP production.  How does a small amount of this hormone cause such a rapid and large increase?

im not quit

babyb0i   1249   1 Reply

bio_man

a couple of study guide questions for physiology test!

a couple of study guide questions for physiology test!

The mammalian kidney can produce acidic or alkaline urine dependent upon physiological conditions.  In class we discussed H+ secretion using a Na+/H+ antiporter, coupled with a HCO3- facilitated transport mechanism. 
a.   Using a

babyb0i   1997   1 Reply

bio_man

Physiology HW

Physiology HW

In a person at rest, most of the blood within the circulatory system is found in the vessels called the ____________.

x-Beth-x   832   1 Reply

bio_man

MCQ

MCQ

If the influence of ____________ nerves were removed from the resting heart, its number of beats per minute would ____________.
A. sympathetic; decrease
B. parasympathetic; increase
C. sympathetic; increase
D. somatic; fall to

sakura7   617   1 Reply

bio_man

T/F Help

T/F Help

If blood pressure falls below a certain value, the sympathetic nervous system responds by prompting the adrenal glands to secrete epinephrine into the bloodstream.
A. True
B. False


Local control of arteriolar diameter by

7-7   607   1 Reply

bio_man

HELP MEEEEE!!!

HELP MEEEEE!!!

A 30 year old man, a mechanic by profession came to the emergency department complaining of generalized body rigidity of two days duration. He has no Hx of fever, shortness of breath or cough.
On physical examination Vital signs are with in nor

mary   671   1 Reply

bio_man

A 30 year old man, a mechanic by profession came to the emergency department complaining of generali

A 30 year old man, a mechanic by profession came to the emergency department complaining of generali

A 30 year old man, a mechanic by profession came to the emergency department complaining of generalized body rigidity of two days duration. He has no Hx of fever, shortness of breath or cough.
On physical examination Vital signs are with in nor

mary   1154   N/A

mary

Human Physiology Questions

Human Physiology Questions

1. Does nystagmus occur after a person in a rotating chair has achieved constant velocity? Explain

2. Propose an explaination of the causes of vertigo and nausea in a seasick person.

3. Tastes that are attractive (sweet and umam

Kelly185891   10571   2 Replies

bio_man

Adv. Physiology help needed!

Adv. Physiology help needed!

So there are about four questions on our take home assignment that I need a little help on.  THANKS!

1) What will be the consequences of a stroke affecting the right associated visual area?  Am I right to state that LEFT field of

premeddude   1728   1 Reply

bio_man

Tough spinal cord questions:

Tough spinal cord questions:

What will be the consequences of the following damages to the spinal cord?
- a viral infection that destroyed white matter at the T1-T3 level of the right fasciculus gracilis tract in the spinal cord
- a viral infection that destroys the ne

premeddude   1759   3 Replies

bio_man

Hearing Lab Report Questions HELP!

Hearing Lab Report Questions HELP!

1. Explain the results that might be obtained by performing the Rinne's and Weber's test on a patient with otosclerosis. How might these results compare with those obtained from a patient with sensory deafness?

2. How might the b

Kelly185891   7743   2 Replies

bio_man

The extent of target cell activation depends on...

The extent of target cell activation depends on...

With a couple of homework problems...

1.) The extent of target cell activation depends on:
a) blood levels of hormone
b) number of receptors on/in target cell
c) affinity of receptor for hormone
d) all of the above

pregrar   2281   6 Replies

lalala

anatomy and physiology

anatomy and physiology

I need help with these couple questions!!!

 3.) I.) signal molecule
     II.) G-protein activation
    III.) second messenger generated
     IV.) effector protein activated
    &n

pregrar   1803   2 Replies

lalala

A&P help

A&P help

Glycogenolysis and gluconeogenesis occur in the liver in response to
a) insulin
b) glucagon
c) aldosterone
d) PTH
e) PRL

THe most important regulator of extracellular electrolyte concentrations is
a) calcitoni

pregrar   1162   2 Replies

lalala

How do you get an print of your tongue like you fingerprint?

How do you get an print of your tongue like you fingerprint?

I have to do an experiment that involves the different shapes of papillae on my tongue. My human physiology teacher told me to drink Kool-Aid and then press my tongue on a white sheet of paper, but it didn't work! I don't know how to do thi

Kelly185891   984   1 Reply

bio_man

Genetics

Genetics

Two genes (Big nose, B, and Arrogance, A) are known to map 16 map units apart from each other.  A person with a B and an A allele is highly overconfident with their nose sticking up high in the air, the so-called “snooty” phenotype.  The ho

Babygal   1328   1 Reply

bio_man

Discuss signal conduction through a neuron from incoming excitation to signal initiation in the post

Discuss signal conduction through a neuron from incoming excitation to signal initiation in the post

Discuss signal conduction through a neuron from incoming excitation to signal initiation in the post synaptic cell. Include the roles of graded and action potentials and the synapses.
Use the words below write an essay putting them into the corr

Babygal   1782   1 Reply

bio_man

(All about hormones)....need help

(All about hormones)....need help

This hormone acts via the PKC and IP3/DAG pathway and is stimulated by a decrease in either blood volume/pressure or an increase in blood osmolality.
a) oxytocin
b) ACTH
c) ADH
d) aldosterone
e) epinephrine

This ho

pp_4188   1585   4 Replies

bio_man

physiology and anatomy help please.

physiology and anatomy help please.

Which of the following endocrine glands is capable of storing its hormones extracellularly and then slowly releasing them?
a) pituitary
b) pancreas
c) thyroid
d) adrenal medulla

...
...
....
..
.

pp_4188   1916   2 Replies

bio_man

Which of the following terms best describes the interactions between insulin and glucagon?

Which of the following terms best describes the interactions between insulin and glucagon?

Which of the following terms best describes the interactions between insulin and glucagon?
a) synergistic
b) permissive
c) antagonistic
d) additive
e) agonistic


....

Somatomedins are required for

pp_4188   1665   1 Reply

bio_man

hw help please.... :)

hw help please.... :)

Which of the following pairs are incorrectly matched?
a) neural stimuli--oxytocin
b) humoral stimuli--insulin
c) hormonal stimuli--GH
d) hormonal stimuli--ADH
e) neural stimuli--epinephrine
f) humoral stimuli--calcitonin

pp_4188   876   1 Reply

bio_man

I need help on my hw pls. I'm not sure about my answers.

I need help on my hw pls. I'm not sure about my answers.

Organic monomers ions and water are not directly transported from the intravascular compartment (plasma) to the cells of tissues and organs. Why?
A) They must first be transported through the apical and basolateral membranes of vei

ms_lazy   1874   1 Reply

bio_man

In a skeletal muscle fibre, the splitting of a molecule of ATP at an ATPase binding site on a myosin ...

In a skeletal muscle fibre, the splitting of a molecule of ATP at an ATPase binding site on a myosin ...

In a skeletal muscle fibre, the splitting of a molecule of ATP at an ATPase binding site on a myosin head group increases the affinity of the head group’s other binding site for
A. thick filaments.
B. Ca++ ions.
C. troponin
D.

x-Beth-x   1079   3 Replies

duddy

T or F

T or F

The crossbridges between thick and thin filaments in contracting smooth muscle last much longer than those in contracting skeletal muscle. Therefore, smooth muscle is able to sustain contractions of long duration while using much less ATP than a comp

7-7   806   1 Reply

bio_man

need help

need help

Case study 1
Case Study 1
1. A 28 year old Caucasian lady came to the emergency department complaining about shortness of breath, chest pain which is aggravated by deep breathing of one week duration. She had generalize easy fatigability,

john   860   1 Reply

bio_man

Drowning as a Negative Feedback Mechanism?

Drowning as a Negative Feedback Mechanism?

Explain what would happen in negative feedback fashion if a person was drinking to much water while drowning in a lake.

Kelly185891   1620   1 Reply

Biology Forums

HW HELP plse correct me :( sometimes i dont get it

HW HELP plse correct me :( sometimes i dont get it

During the oxidation of glucose, O2 is reduced to CO2 which diffuses out of the cells and is expired by the lungs?
A) TRUE
B) FALSE

The brain can adapt to using ketones, along with glucose, during a prolonged fast?
A) TRUE

ms_lazy   927   1 Reply

star

I'm not sure about these questions pls. help.

I'm not sure about these questions pls. help.

Why can't fatty acids DIRECTLY be metabolized to form glucose?
A) Because they are hydrophobic
B) Although pyruvate can be metabolized to Acetyl CoA, Acetyl CoA cannot be metabolized to pyrivate as this step is irrevesible
C) Beca

ms_lazy   1580   1 Reply

bio_man

During oxidation of glucose, what happens when Pyruvic Acid forms Acetyl CoA?

During oxidation of glucose, what happens when Pyruvic Acid forms Acetyl CoA?

During oxidation of glucose, what happens when Pyruvic Acid forms Acetyl CoA?
A) NADH2 is oxidized
B) Coenzyme A bonds to pyruvic acid and becomes part of the product
C) CO2 is produced and diffuses out of the cell into the extracellul

ms_lazy   1602   1 Reply

bio_man

How to prove if the heart continue to repolarize after the semilunar calvaes close

How to prove if the heart continue to repolarize after the semilunar calvaes close

That helps now how to do carry our the following experiment?
How can i conduct an experiment in the lab and prove if the heart continue to repolarize after the semilunar calvaes close ? if so for how long (its basically a design experiment)

12

iwanttoknow   5220   16 Replies

bio_man

A neuron which exhibits saltatory conduction differs from on that does not, in that the former

A neuron which exhibits saltatory conduction differs from on that does not, in that the former

1. A neuron which exhibits saltatory conduction differs from on that does not, in that the former
a. produces its action potentials through a Na+ ion influx
b. produces its action potentials through a K+ influx
c. produces action pote

Kelly185891   3510   2 Replies

bio_man

A drug that acts as a antagonist at a synaptic junction will

A drug that acts as a antagonist at a synaptic junction will

1. A drug that acts as a antagonist at a synaptic junction will
a. prevent the neurotransmitter from binding to the postsynaptic membrane receptor sites
b. prevent the synthesis of neurotransmitter
c.prolong the duration of the postsyn

Kelly185891   4838   1 Reply

bio_man

Lysosomal Storage Diseases

Lysosomal Storage Diseases

What potential problems could be caused by defective lysosomes?

brinkleyracing   14557   3 Replies

karim89

Help! Anatomy Lab Questions!

Help! Anatomy Lab Questions!

1. The most superficial layer of skin (composed of keratinocytes), is dead and provides a protective barrier. If these cells were alive at the surface, how would that compromise the protective function of the integument?

2. Tattoos consist

Kelly185891   14285   4 Replies

star

Which of the following normally depolarizes a plasma membrane during the action potential?

Which of the following normally depolarizes a plasma membrane during the action potential?

1. Which of the following normally depolarizes a plasma membrane during the action potential?
a. a decrease in the net flux of K+ ions out of the cell
b. a increase in the net flux of Cl- ions out of the cell
c.a increase in the net fl

Kelly185891   2257   1 Reply

Biology Forums

Below is a diagram of an action potential. Choose the label that corresponds to the time in which th

Below is a diagram of an action potential. Choose the label that corresponds to the time in which th

Below is a diagram of an action potential. Choose the label that corresponds to the time in which the axonal membrane’s permeability to Na+ ions is at its peak, while its permeability to K+ ions is at the resting level.

See the attachment

x-Beth-x   1472   2 Replies

bio_man

absolute refractory period and the relative refractory period

absolute refractory period and the relative refractory period

What is one similarity between the absolute refractory period and the relative refractory period following the initiation of an action potential on an axon?

7-7   5207   1 Reply

lewis

Fill in the Blank

Fill in the Blank

In the resting neuron, the membrane potential maintains a constant value because the inward leakage of ____________ is exactly balanced by the active transport of the same ion from the interior of the cell to its exterior.

sakura7   2241   1 Reply

bio_man

Deactivating Taste buds.

Deactivating Taste buds.

Which procedure do you think will work better on deactivating the tongue's taste buds temporary? Drying or Numbing with ice? & Why?

roflmaolol   1333   1 Reply

sarah!

Mitochondrial Cytopathies

Mitochondrial Cytopathies

Which cell populations are the most affected by Mitochondrial Cytopathies?

brinkleyracing   27397   3 Replies

brinkleyracing