Mammalian erythrocytes have short life span due to absence of Mitochondria and Nucleus is absent in mammalian erythrocytes Answer : (c)

A lymphatic duct that drains the right head, neck, lung, and upper extremity and the convex surface of the liver Answer : (b)

Stages of erythropoiesis	Important event
Proerythroblasts	Nucleoli disappear
Intermediate normoblasts	Haemoglobin starts appearing
Early normoblasts	Nucleoli disappear
Late normoblasts	Nucleus disappears
Reticulocyte	Reticulum is formed. Cell enters capillary
Mature RBC	Reticulum disappears cell attains biconcavity

Answer : (c)

Answer : (d)

Answer : (d)

An oval depression on the lower part of the septum of the right atrium; it is a vestige of the foramen ovale, and its floor corresponds to the septum primum of the fetal heart. Answer : (a)

Parent	IAIA or IAi (Man)	IAIB ( mother)
Gametes	IA and i	IA and IB
Progeny	IAIA (GroupA)or IA IB( GroupAB) or IA i(GroupA)and IBi (GropB)

If Man is homozygous then possible group would be only A and AB And group B would not be possible Thus if child is of group B then man is not homozygus Answer : (b)

Neurogenic heartLower invertebrates like crustaceans (example shrimp, crab, lobster) Answer : (b)

On 3 December 1967, South African doctor, DrChristiaan (Chris) Barnard, performed the world's first human to human heart transplant at Groote Schuur Hospital, Cape Town. Answer : (c)

Pericardium: The conical sac of fibrous tissue that surrounds the heart and the roots of the great blood vessels. The brachial artery: is the major blood vessel of the arm. The vertebral arteries: are major arteries of the neck Coronary artery: Supplies oxygenated blood to the walls of the ventricles and the atrium. Blood supply of the pericardium The visceral pericardium is supplied and drained by the coronary system The parietal and fibrous pericardium receive arterial blood from the following sources: Pericardiophrenic and musculophrenic branches of the internal thoracic artery Pericardial branches from Bronchial; Esophageal ;Superior phrenic arteries. Answer : (d)

QRS complex :It corresponds to the depolarization of the right and left ventricles of the human heart. Answer : (d)

Answer : (d)

Red Blood Cell Count: 4.6-6.2 million per cubic millimeter in Men and 4.2-5.4 million per cubic millimeter in Women. Answer : (a)

SA node is the pacemaker for the heart, but it in turn is controlled by the vagus nerve Answer : (b)

Vitamin K serves as an essential cofactor for a carboxylase that catalyzes carboxylation of glutamic acid residues on vitamin K-dependent proteins. The key vitamin K-dependent proteins includes Coagulation proteins: factors II (prothrombin), VII, IX and X. Answer : (a)

Rh incompatibility, also known as Rh disease, is a condition that occurs when a Rh-negative blood type is exposed to Rh-positive blood cells, leading to the development of Rh antibodies. It can occur during blood transfusion and pregnancy. Answer : (d)

Answer : (c)

Answer : (b)

Rh -ve person donated blood, so nothing will happen to doner, but Recipient will die Answer : (d)

The lymphatic system has multiple interrelated functions: It is responsible for the removal of interstitial fluid from tissues. It absorbs and transports fatty acids and fats as chyle from the digestive system. It transports white blood cells to and from the lymph nodes into the bones Answer : (d)

Answer : (b)

The second heart sound (S2) is associated with closure of the semilunar valves (pulmonary and aortic valves), causing. The second heart sound (S2). Shorter and not as loud as the first sound. Answer : (d)

End-diastolic volume (EDV) is the volume of blood in the right and/or left ventricle at end load or filling in (diastole) or the amount of blood in the ventricles just before systole. End-systolic volume (ESV) is the volume of blood in a ventricle at the end of contraction, or systole, and the beginning of filling, or diastole. ESV is the lowest volume of blood in the ventricle at any point in the cardiac cycle. Stroke volume (SV) is the volume of blood pumped from the left ventricle per beat. = EDV – ESV SV = 120 -50 = 70 ml Answer : (a) Answer : (a)

The heart wall is made of 3 layers: epicardium, myocardium and endocardium. Answer : (d)

These coronary arteries branch off into smaller arteries, which supply oxygen-rich blood to the entire heart muscle Answer : (c)

Lymph Composition. Lymph contains a variety of substances, including proteins, salts, glucose, fats, water, and white blood cells. Unlike blood, lymph does not normally contain any red blood cells. Answer : (d)

QRS- the complex represents the depolarization of the ventricles. This is followed by an isoelectric segment. T wave- this represents ventricular repolarization. Atrial Contraction- the atria mechanically contract starting at the beginning of the P wave, until the beginning of the QRS complex. Answer : (b)

Answer : (a)

Answer : (c)

Answer : (a)