Question

i. Why is it that newborn ruminants are considered monogastric?

a. The reticulum, rumen, and omasum are active, but not ruminating

b. the presence of the abomasum and omasum complex that is active in ruminants

c. the presence of the esophageal or reticular groove

d. the reticulum and rumen are in development

ii. Hemoglobin is a protein that carries oxygen. Please tell which of the following statements are correct.

a. when PO2 is low (30-40mmhg) the hemoglobin protein saturation increases

b. when PO2 is high (75-100mmhg) the hemoglobin protein is almost entirely saturated

c. when PO2 is high (75-100mmhg) the hemoglobin saturation is low

d. all of the above

iii. Blood circulation to lungs includes two systems. Identify which statement most accurately describes the blood circulation present int he lungs.

a. The pulmonary artery brings oxygenated blood from the right ventricle and the bronchial artery carries venous blood for gas exchange

b. The pulmonary artery is involved in the delivery of nutrients to the pulmonary tissues, whereas the bronchial artery is involved in the exchange of gasses

c. The pulmonary artery carries venous blood from the right ventricle and the bronchial artery carries oxygenated blood to deliver oxygen and nutrients to pulmonary tissues

d. The pulmonary artery and veins supply nutrients and oxygen to the lungs, whereas bronchial arteries and veins involve gas exchange in the alveoli

iv. The air passageway from the nostrils to the alveoli includes

a. Nostrils, Conchae, Larynx, Trachea - esophagus junction, bronchi, bronchioles, and alveoli

b. Nostrils, Conchae, Pharynx, Trachea, Bronchus, bronchioles, alveolar sacs, and alveoli

c. Nostrils, Pharynx, Trachea, Bronchioles, Bronchi, and alveoli

d. Nostrils, Sinuses, Pharynx, Trachea, Bronchioles, and alveoli

V. The mucociliary system in the respiratory tract

a. remove particles that have been inhaled and deposited in the tract

b. allows particles to be encapsulated and form abscesses

c. performed only by macrophages and white blood cells

d. all of the above

Answer 1

Question no 1

Answer is Option d

Yes in newborn until the weaning age is over the rumen, reticulum and omasum are under development.

So they are not fully developed and this is the reason they are considered as monogastric.

Option a is wrong

This is because they are not fully developed

Option b is wrong

This complex will not be processed and is not the reason for being considered as monogastric

Option c

The esophagus and reticulum grove is not the reason for considering as monogastric