Botulism affects:
1.  Digestive system
2.  Blood vascular system
3.  Nervous system
4.  Respiratory system

Deficiency of oxygen affects which organ the most:
1.  Brain
2.  Skin
3.  Kidney
4.  Intestine

Which of the following statement is correct for the node of Ranvier of nerve:

1. Neurilemma is discontinuous

2. Myelin sheath is discontinuous

3. Both neurilemma & Myelin sheath are discontinuous

4. Covered by myelin sheath

What used to be described as Nissel granules in a nerve cell are now identified as:

1. Cell metabolites

2. Fat granules

3. Ribosomes

4. Mitochondria

Four healthy people in their twenties got involved in injuries resulting in damage and death of a few cell of the following. Which of the cells are least likely to be replaced by new cells:

1. Osteocytes

2. Liver cells

3. Neurons

4. Malpighian layer of the skin