Arteries of the pulmonary circuit:

How do you determine if recruitment of motor units occurred on EMG?

The myosin cross-bridge cycle________.

1. requires ATP hydrolysis
2. involves interaction of myosin heads and the actin filament
3. cannot occur if Ca⁺⁺ is present
4. a and b
5. all of the above

1) Considering C5, T4, and L2. How are these vertebrae similar? How are they different?

2) What markings on the rib articulate with what markings on the vertebrae?

(I'm more confused by the first question)

What are disadvantages associated with muscles that cross more than one join

3) Say an individual has a respiratory disease that causes less CO₂ to be exhaled with each breath.

      a) Would this tend to cause acidosis or alkalosis of the extracellular fluid? Why?

      b) Over the long term, how would the body compensate to bring pH back to normal, even though problems with CO₂ exhalation remain?

A 34 year-old graduate student presents to the student health center with reddish, crusted lesions on his penis. He is treated with fungal cream. One week later he returns because the lesions are not getting better, and he is prescribed dicloxacillin (penicillin derivative) for a presumed staph infection. It’ been over 3 months since his initial visit, and the lesions on his penis have resolved. However, he now returns with a rash on his trunk and sees a different provider who knows the patient is a man who has sex with men.

3. The lesions are called __________ and are a “hallmark” of _________ stage of disease.

Question 3 options:

A 34 year-old graduate student presents to the student health center with reddish, crusted lesions on his penis. He is treated with fungal cream. One week later he returns because the lesions are not getting better, and he is prescribed dicloxacillin (penicillin derivative) for a presumed staph infection. It’ been over 3 months since his initial visit, and the lesions on his penis have resolved. However, he now returns with a rash on his trunk and sees a different provider who knows the patient is a man who has sex with men.

4. The rash indicates?

Question 4 options:

A 30-year old woman has the anterior lobe of her pituitary gland surgically removed because of a tumor. Without hormone replacement therapy, which of the following would occur after the operation?

A. Absence of menstration (menses)

B. Failure to secrete catecholamines in response to stress

C. Failure to secrete insulin in a glucose tolerance test

D. Failure to secrete Parathyroid hormone (PTH) in response to hypocalcemia.

Matching:

1.____Folds of the cerebral cortex A) Broca area

2.____Extension of dura matter between cerebellar B) Wernicke Area

hemispheres

C) limbic system

3._____Extension of dura matter between cerebral and

cerebellar hemispheres D) gyri

4._____Structures responsible for CSF being deposited into E) endoneurion

the superior sagittal sinus from the subarachnoid space

F) perineurium

5._____White matter of the cerebellar hemispheres

G) olfactory nerve

6._____The emotional brain

H) arachnoid villi

7._____Connects cerebellum to the brainstem

I) peduncles

8._____Permits recognition of spoken and written words

J) trigeminal nerve

9._____Generates motor signals for speech

K) alzheimer

10._____Connective tissue that surrounds a neuron disease

L) tract

11._____Connective tissue that surrounds a group of neurons,

or fascicles M) shingles

12._____Cranial nerve that is purely sensory N) motor

13._____Cranial nerve that has three sensory branches 0) tentorium

   cerebelli

14._____Characteristic of senile plaques, or amyloid protein P) falx cerebelli

15._____Bundles of axons in the CNS Q) arbor vitae

16._____Bundles of cell bodies in the PNS R) nuclei

17._____Bundles of cell bodies in the CNS S) sensory

   T) ganglion

18_____Skin eruptions along a nerve tract

19._____ventral root

20._____dorsal root

True or False:

T or F - Choroid plexuses are found only in the lateral ventricles of the brain.

T or F - A lumbar spinal tap involves the removal of CSF from the epidural space.

T or F -  The “gateway to the brain” is the medulla oblongata.

T or F - A patellar reflex involves interneurons in several segments of the spinal cord.

Have you heard about research that suggests that childhood immunizations are associated with the development of autism? Have you heard that the publication that reported this research and it’s principal author have been discredited? Why do you think that many parents are still very fearful about having their children immunized? Your posts should be at least 300 words in length