NEED help with Anatomy?

Question

NEED help with Anatomy ?

1) A positive feedback mechanism is defined as

A) a feedback mechanism that removes the original stimulus

B) the dominate feedback mechanism of the body

C) a feedback mechanism that reinforces the change in the controlled condition

D) a feedback mechanism that reverses a change in a controlled condition

2) Name the plane that divides the heart into atria and ventricles

A) midsagittal

B) transverse

C) sagittal

D) coronal

3) Which of these is considered a sign (rather than a symptom)?

A) Paralysis

B) Anxiety

C) Headache

D) Nausea

4) Which plane divides the body into anterior and posterior portions?

A) Sagittal

B) Mid-sagittal

C) Transverse

D) Coronal

Please help me, these 4 questions have been really annoying me

Answer 1

2)B

4)c

1)d i think

dont no 3

Answer 2

1) C - an example is when the pituitary gland produces oxytocin in order to stimulate contractions in a pregnant woman who is ready to give birth.

2) B - transverse is across. The atria are the "top" chambers of the heart while the ventricles make up the "bottom" portion.

3) A - signs are things that can be seen or proven through tests (like paralysis) whereas symptoms are more like abstract feelings (like the pain, nausea, etc.)

4) D - The coronal plane divides the body into anterior (or ventral) and posterior (or dorsal) portions. It gets its name from the part of the skull where the bones meet; which is called the coronal suture.

Answer 3

I am not sure about the rest, but #4 is frontal plane also known as the coronal plane.

Also this website has really helped me in my A&P class just in case you are interested.

http://groups.msn.com/AnatomyPhysiologyT...

I hope this helps...