5. A. Typically, the brain of a healthy, alert older person features __________ in comparison to the brain of a middle‑aged person:          

a. more neurons with decreased dendritic branching.

b. equal numbers of neurons with decreased dendritic branching.

c. fewer neurons and decreased dendritic branching.

d. fewer neurons and increased dendritic branching.

B. In general, the two hemispheres of the brain are specialized. The left hemisphere of the        brain emphasizes __________, while the right side of the brain emphasizes __________:

a. L=visual interpretation, locomotor control, homeostatic regulation;

            R=aesthetic analysis, emotional assessment, auditory processing.

b. L=analytical processing, linguistic activity, sequential analysis;

            R=visual interpretation, analytical procedures, tactile assessment.

c. L=sequential processing, analytical procedures, linguistic activity;

R=integrative activity, problem solving, emotional assessment.

d. L=auditory processing, linguistic productivity, sequential problem solving;

            R=sequential analysis, homeostasis, olfaction, and virtuousness.

C. In general, animals that are perceived by scientists as being relatively intelligent possess __________:

a. relatively large semantic memory capacities.

b. relatively large episodic memory capacities.

c. relatively large sensory memory capacities.

d. relatively well developed explicit memory performance.

e. humans.

It is said that the control of movements is "goal oriented" and it is assumed that body movements are controlled similar to what we know from the control of eye movements, where the superior colliculus has a very important and essential key function. Provide a real world example that illustrates and describes the significance and importance of such type of control of movement, and which captures all major key aspects of this type of control of movements.

Please actually answer the question, the other answer was taken from a research paper that did not answer the question.

Scenario: A cheerleader is complaining of pain over the right hand/wrist. You determine that the cheerleader fell on an outstretched hand while performing a backflip at practice the previous day. Observation reveals minor swelling but no discoloration or deformity. Palpation reveals sharp pain in the anatomic snuffbox.

The injury is a scaphoid fracture

1.Discuss the injury and differential diagnosis.
2.Explain what steps you would take in managing and treating her injury.
3.Discuss the negative outcome that could result for the patient if an athletic trainer chooses conservative treatment prior to making a referral.

1. Why are the hypothalamus and the pineal body considered part of the endocrine system as well as the nervous system?

1)AV block refers to a condition where there is a longer-than normal conduction delay at the AV node. There are different degrees of AV block. Sometimes conduction is only slightly delayed, and sometimes conduction is blocked entirely. Which of the following will not be observed in someone with AV block (of any severity).

incorrect answer i selected)Atrial and ventricular systole occur at the same time.

correct answer )Atrial contraction rate is slower than ventricular contraction rate.

2)Which of the following statements about the Neuromuscular Junction (NMJ) is CORRECT:

incorrect answer i selected)Blocking the actions of acetylcholine esterase (AChE) will prevent the opening of ACh receptor channels and reduce intracellular [Na+] in muscle cells.

correct answer ) In healthy muscle, an action potential in a motor neuron will always be followed by action potentials in the muscle fibers that are innervated by that motor neuron.

Can you please explain to me why the answer i selected is incorrect and why the correct answer is right for the both questions. Please explain.

A patient has a heart murmur that occurs after the first heart sound. Given the fact that the problem is on the right side of the heart, explain in detail a possible cause of the murmur in terms of the events of the cardiac cycle.

1. Consider the fatty acid C24:2 (D^{8, 15})

Break down this fatty acid.  Show all the products made and the enzymes needed for any non-normal b oxidation step. With explanation

Trace the path of a single erythrocyte through the heart from Superior Vena Cava to Aorta. Describe the characteristics of each chamber as the erythrocyte passes through. For each feature mentioned, include its location and a brief comment describing its function. Use terms like endocardium, myocardium, the names of great vessels, auricle, papillary muscle, pectinate muscle, types/names of valves, fossa ovalis, chordae tendineae, interventricular septum. (Note: Include the pulmonary circuit in your path, but do not detail the pulmonary circuit characteristics or vessels other than those directly attached to the heart.)

A healthy college student from Boston went to Colorado over Spring Break for a vacation. While there, she drove to the top of Pike’s Peak, a tall mountain. During her first hour on the peak, she walked around, but had to sit and rest three times. The last time was in the weather station. She noticed the barometer in the station read 600 mm Hg (total Atm pressure). Explain two physiological responses that would increase the amount of oxygen delivered to her tissues.

Need detailed answers please.

Explain how carbon dioxide is transported in the blood. (Note, this is asking for the HOW, not the WHY.)

Need detailed answers please.

PATHOLOGY 5-3 CEREBRAL PALSY

Prescribing exercise intensity can be achieved using many physiological variables. One of the most useful manners may be to use respiratory gas exchange measurements. First describe exercise intensity zones based upon ventilatory equivalents. Then relate the following: heart-rate zones, lactate threshold(s), and VO2max to these zones created using ventilatory equivalents.

Prescribing exercise intensity can be achieved using many physiological variables. One of the most useful manners may be to use respiratory gas exchange measurements. First describe exercise intensity zones based upon ventilatory equivalents. Then relate the following: heart-rate zones, lactate threshold(s), and VO2max to these zones created using ventilatory equivalents.

Differentiate between humoral and cellular immunity. Include what cells they use and the steps they take to protect the body from infection. I want a detailed accounting of what happens when both types encounter an antigen

The Patient:

Mathew Miller is a 7-day-old infant that is rushed to the emergency room by his parents Emma and Jacob Miller, Mennonites from Lancaster County, PA. Emma’s pregnancy and delivery with Mathew was normal but he started having trouble nursing and now has completely stopped feeding. By the time they reach the emergency room Mathew’s limbs were rigid and he had had a seizure.

The initial examination showed no infection and his x-rays were normal. The family history collected by the Doctor revealed that Emma and Jacob had had a previous son, Samuel that died at 9 days-of-age. There also is a history of unexplained childhood mortality on both sides of the family; Emma’s mother had two sisters who died in the first year of their lives and Jacob’s father had a sister who died at 7 months of age. Emma also points out to the Doctor that Mathew’s diaper has a funny smell to it. Blood and urine samples were taken for testing and skin biopsies from Mathew, Emma, and Jacob were taken and tested for enzyme activity. The tests results showed that:

• Mathew’s urine had elevated levels of the branched chain amino acids and their α-keto acid derivatives (which caused the sweet smell in his diapers)
• Both Emma and Jacob’s skin biopsies had nearly normal levels of branched chain amino acid metabolism/enzyme activity
• Mathew’s enzyme activity was less than 2% of normal

Question 1:

What is the most likely diagnosis for Mathew?

A.         Argininemia

B.         Diabetes mellitus

C.         Maple syrup urine disease

D.         Phenylketonuria