Questions
On a hot summer day (95°F), you walk outside from an air-conditioned room (75°F) watching TV...

On a hot summer day (95°F), you walk outside from an air-conditioned room (75°F) watching TV and begin jogging. Describe how your body reacts physiologically to the change in temperature. Be sure to include the following terms: set point, normal range, homeostasis, stimulus, sensor, input signal, integrating center, output signal, target and response (10 pts), include examples of tissues and organs that make up the sensor, input signal, integrating center, output signal, target (5 pts).

In: Anatomy and Physiology

1. Answer the following questions about the pancreas. (a) What is the general role of the...

1. Answer the following questions about the pancreas. (a) What is the general role of the pancreas in digestion? (b) When does the hepatopancreatic duct open? (c) What would you guess is the reason that many of the digestive enzymes produced by the pancreas are released as zymogens, rather than as fully functional enzymes?

2. Answer the following questions regarding the large intestine. (a) What is the main substance absorbed from the large intestine? (b) What do you consider the main function of the large intestine? (c) How would you characterize bacteria that live in our large intestines: as parasites? symbionts? pathogens? other? Explain.

3.(a) The liquid that gets modified to have become urine comes from where? (b) What structure in a kidney carries out filtration? (c) What is present in blood that is not present in the filtrate? (d) What is the difference between filtrate and urine? Note: Just state a few major differences here.

In: Anatomy and Physiology

Two physicians are finishing their rounds when a paramedic brings a patient in the emergency room....

Two physicians are finishing their rounds when a paramedic brings a patient in the emergency room. The senior paramedic, Jim Morrison, reported that the patient was swimming at the local quarry and did a forward flip into the water, striking some submerged rocks. "Which part of his body struck the rocks?" asked Dr. Carter. "He was in a hyperflexed-tucked-position when he hit the rocks, lacerating the right side of his head and neck and upper back. The patient indicated he had severe pain upon impact and loss of sensation and movement in his arm and leg. He may have lost consciousness, but he's not sure. He also complains of a severe headache, dizziness, and nausea. When we arrived at the scene we immobilized, stabilized and transported him immediately," Jim explained. Looking at the patient, Jim continued. "His name is Mike Smith, and he's 22 years of age. His vital signs include slightly lowered blood pressure (100/70), heart rate of 75 beats per minute, respiration normal, and he is conscious and alert." As the patient was being prepped for examination, Dr. Carter and Dr. Green discussed how they should approach their evaluation. Dr. Carter started by saying,"After seeing the head wound and the amount of blood loss, and hearing his complaints, I want to confirm my suspicion that this patient has a brain injury." Dr. Green disagreed: "I think that the other signs and symptoms indicate a spinal cord injury, and that's what we should investigate." The following table summarizes the findings of the evaluation, which included a physical exam, X-rays, magnetic resonance imaging (MRI), and neurological tests.
Summary of Diagnostic Testing for Mike Smith
Sensory Testing -Decreased sensation to touch, pressure, and vibration in the right upper/lower extremities -Decreased temperature discrimination (cold vs. warm) in the left upper/lower extremities
Motor Testing -Decreased strength and movement of the right upper/lower extremities during muscle testing -Decreased strength and movement of left abdominal muscles -Absence of triceps and biceps reflexes in the right upper extremity -Abnormal response of patellar, Achilles (hyper) reflexes in the right lower extremity -Positive Babinski sign on the right foot -Abnormal cremasteric reflex in the right groin region
General Examination -Abnormal pupil response of right eye (constriction) -Other vital signs within normal limits -Cognitive testing normal (counts backward from 100 by 7s; knows name, date, place) X-Ray and MRI Examination -No fractures present in the skull -Fracture in the 7th cervical vertebra -Significant swelling present in the spinal canal in the C7-T2 region Spinal cord appears to be intact
Which of the Doctors (Carter or Green) are correct with the diagnosis. Please, explain why you chose one or the other.  

In: Anatomy and Physiology

A/1/The process of opsonisation of antigen particles involves: Select one: _ a. inhibition of viral replication...

A/1/The process of opsonisation of antigen particles involves:
Select one: _
a. inhibition of viral replication
b. chemotaxis
c. coating bacteria with antibodies or complement component
d. activation of natural killer (NK) cells e. cytokine production

2/Under resting conditions, most of the heat loss from the body occurs through:
Select one:
a. radiation
b. sweating
c. conduction
d. convection

3/In the female reproductive cycle, the surge of luteinizing (LH) hormone leads to:
Select one:
a. ovulation L
b. disintegration of corpus luteum
c. menstruation
d. growth of primordial follicles

In: Anatomy and Physiology

In which of the following segments of the nephron, the antidiuretic hormone stimulates insertion of aquaporins...

In which of the following segments of the nephron, the antidiuretic hormone stimulates insertion of aquaporins when a person Is dehydrated?

Select one:
_ a. Early distal tubules
b. Collecting ducts
C. Thin ascending loop of Henle
d. Proximal convoluted tubule

In: Anatomy and Physiology

what is the relationship between motor neuron activity, EMG activity and performance (work)?

what is the relationship between motor neuron activity, EMG activity and performance (work)?

In: Anatomy and Physiology

69-1/Surgical damage to which of the following nerves will abolish colonic mass movements? Select one: _...

69-1/Surgical damage to which of the following nerves will abolish colonic mass movements?
Select one:
_ a. Vagal nerve _
b. Pudendal nerve
c. Sympathetic nerves
d. Enteric nerve plexus

2/Fetus cortisol stimulates synthesis of:
Select one:
a. oxytocin receptors
b. surfactant
c. prostaglandins
d. vaginal mucus

In: Anatomy and Physiology

65-1/What is cryptorchidism? Select one: a. Inability to secrete testosterone b. Male Infertility C. Low sperm...

65-1/What is cryptorchidism?
Select one:
a. Inability to secrete testosterone
b. Male Infertility
C. Low sperm count
d. Failure of testes to descend into scrotum

2/What prevents food from entering the nasal passages during swallowing?
Select one: _
a. Elevation of epiglottis
b. Elevation of uvula
c. Apposition of vocal folds
d. Contraction of pharyngeal muscles

3/The secretory phase of the uterine cycle prepares the uterus for:
Select one:
a. the next menstrual cycle
b. shedding of the endometrium
c. implantation of a fertilized ovum
d. movement of sperms through the cervix

4/Which of the following phases of the cardiac cycle will change most upon an increase in the sympathetic activity to the heart?
Select one:
a. ventricular distole will increase
b. ventricular diastole will decrease
c. atrial systole will increase
d. complete cardiac diastole will decrease

In: Anatomy and Physiology

61-1/Which of the following substances increases gastric emptying? Select one: _ a. Secretin b. Cholecystokinin c....

61-1/Which of the following substances increases gastric emptying?
Select one: _
a. Secretin
b. Cholecystokinin
c. Gastric inhibitory peptide
d. Acetylcholine

2/Polyspermy during fertilization is prevented by hardening of:
Select one:
a. zona pellucida
b. corona radiata
c. ZP3 receptors
d. acrosomal membrane

3/A patient attends emergency room because of abdominal pain. Investigations revealed normal levels of pancreatic enzymes, pepsinogen and normal stomach and gall bladder motility. pH measurements revealed acidic small intestine environment. Which of the following hormones is imbalanced?
Select one: _
a. Motilin _
b. Secretin
c. Leptin
d. Cholecystokinin

4/Damage to which of the following structures would stop breathing?
Select one:
_ a. Intercostal nerves
b. Vagus nerves
C. Medulla
d. Pons

In: Anatomy and Physiology

49-1/Insensible water loss is the amount of water that is lost: Select one: a. in the...

49-1/Insensible water loss is the amount of water that is lost:
Select one:
a. in the urine independent of water intake
b. from the skin through sweating
C. from the skin and the respiratory tract
d. in the urine under effect of hormones

2/Distention of which of the following gastrointestinal parts stimulates emptying at the ileocecal region?
Select one:
a. Cecum
b. Stomach
C. Colon
d. Rectum

3/The following figure shows the reaction between red blood cells and the different antibodies of the ABO system. The blood group of this blood sample is: Anti A added/ Anti B added /Anti Rh added /
Select one: _
a. B positive
b. A negative
c. O positive
d. AB negative

4/Which of the following cerebral cortex lobes perceives taste sensation?
Select one: _
a. Frontal _
b. Occipital _
c. Temporal
d. Parietal

In: Anatomy and Physiology

53-1/Acidic pH shifts the O2 -hemoglobin dissociation curve to the right. What will the result of...

53-1/Acidic pH shifts the O2 -hemoglobin dissociation curve to the right. What will the result of this shift be?
Select one:
_ a. More H+ will be unloaded in the pulmonary capillaries I
b. Less H+ will bind to hemoglobin than O2
C. Less CO2 will be unloaded in the systemic capillaries
d. More O2 will be unloaded in the systemic capillaries

2/Which of the following activates chymotrypsinogen in pancreatic juice?
Select one:
_ a. Enterokinase _
b. Trypsin
C. Bile salts
d. Histamine

3/Which of the following responses will be initiated by sudden drop in blood pressure?
Select one: _
a. Decreased respiratory rate
_ b. Bradycardia
C. Increased sympathetic activity
d. Vasodilatation

4/In which of the following segments of the nephron, the antidiuretic hormone stimulates insertion of aquaporins when a person is dehydrated?
Select one:
a. Early distal tubules
b. Collecting ducts
C. Thin ascending loop of Henle
d. Proximal convoluted tubule

In: Anatomy and Physiology

41-1/Which of the following changes occurs during defecation? Select one: a. Predominance of segmentation contractions _...

41-1/Which of the following changes occurs during defecation?
Select one:
a. Predominance of segmentation contractions _
b. Contraction of external anal sphincter
C. Reduction of intra-abdominal pressure
d. Relaxation of internal anal sphincter

2/When does the process of spermatogenesis start? Select one: _
a. At puberty
b. After the first division of spermatogonia
C. In the mother's womb
d. Immediately after birth

3/Which of the following thalamic nuclei is the site of synapse between second and third order neurons in somatic sensation pathways?
Select one:
a. Anterolateral nucleus
b. Ventral posterior nucleus
c. Dorsolateral nucleus
d. Lateral geniculate body

4/Which of the following physiological parameters will decrease in a young man who is exercising for 2 hours outside in hot summer weather?
Select one: _
a. Heart rate _
b. Urination
C. Cutaneous blood flow
d. Metabolic rate

In: Anatomy and Physiology

37-1/Which of the following functions is regulated by the hormone melatonin? Select one: _ a. Circadian...

37-1/Which of the following functions is regulated by the hormone melatonin?
Select one: _
a. Circadian rhythm _
b. Adaptation to stress
c. Start of labor
d. Skin pigmentation

2/A 67 years old women with a family history of a Graves' disease, an autoimmune disease characterised by the presence of antibodies directed against thyroid stimulating hormone receptors in the thyroid gland. Her condition is due to:
Select one:
a. A shortage of B lymphocytes _
b. an implanted "foreign" thyroid gland from an unrelated donor _
C. the failure of her immune system to generate an innate immune response
d. the failure of her immune system to prevent activation of self-reactive lymphocytes

3/Which of the following conditions prolongs the coagulation time?
Select one: _
a. Purpura
b. Anemia _
c. Polycythemia _
d. Hemophilia

4/Which of the following will increase upon stimulation of the parasympathetic nerves to the bronchi?
Select one: _
a. Lung compliance
b. Surface tension
C. Broncho constriction
d. Anatomic dead space

In: Anatomy and Physiology

luid pressure in a container is dependent on the ___________________. a. height of the fluid column...

luid pressure in a container is dependent on the ___________________. a. height of the fluid column only b. density and colour of the fluid c. height of the fluid column and the density of the fluid d. colour of the fluid only e. density of the fluid only

In: Anatomy and Physiology

17-1/What is meant by the term specific dynamic action of protein? Select one: a. When fasting,...

17-1/What is meant by the term specific dynamic action of protein?
Select one:
a. When fasting, metabolism of protein is reduced
b. Digestion of protein is regulated by body metabolism
c. Metabolism of protein generates small amount of heat 7
d. Digestion of protein increases metabolism

2/Hormone (A) increases the number of receptors of hormone (B). In the presence of hormone (A) the effect of hormone (B) is enhanced. This effect of hormone A on hormone B is called:
Select one: _
a. synergism D
b. cooperation
c. antagonism
d. permissiveness

3/Which of the following drugs will cause an increase in serum gastrin level if administered for long time?
Select one: _
a. Sympathetic agonist
b. Cholinergic agonist
C. H2 receptor antagonist
d. H+/K+ pump inhibitor

4/A man has a respiratory rate of 15 times/min, a tidal volume of 350 ml and a dead space of 100 ml. What is his alveolar ventilation (L/min)?
Select one: _
a. 3.5
b. 3.75
C. 5.25
d. 1.15

In: Anatomy and Physiology