Space in the jaw bone unoccupied by teeth is called
Dentine
diastema
enamel
crown
B.
diastema
Diastema is the gap that separates the big teeth from the grinding teeth in herbivores. It creates a space in which food can be held ready for the grinding action of the teeth. This space is filled with large canine teeth in carnivores.
Match the items of column I with column II and choose the correct option from the codes given below.
| Column I | Column II |
| A. Neuron | 1. Ossein |
| B. Bone-matrix | 2. Nissl’s bodies |
| C. RBCs of man | 3. Antibodies |
| D. Lymphocytes | 4. Non-nucleated |
| A | B | C | D |
| 4 | 1 | 2 | 3 |
| A | B | C | D |
| 2 | 1 | 4 | 3 |
| A | B | C | D |
| 3 | 4 | 1 | 2 |
| A | B | C | D |
| 2 | 3 | 4 | 1 |
Achondroplasia is a disease related with the defect in the formation of
membrane
mucosa
bone
cartilage
Dense regular connective tissue is present in
ligament and tendons
Joint capsule and Wharton's jelly
Periosteum and endosteum
Pericardium and heart valves
Yellow bone marrow is found specially in the medullary cavity
Long bones
Spongy bones
Short bones
All of the above
What will happen if ligaments are torn?
Bone will become unfixed
Bone will become fixed
Bone less movable at joint and pain
Bone will move freely at joint and no pain
Sliding filament theory can be best explained as
When myofilaments slide pass each other actin filaments shorten while myosin filament does not shorten
Actin-myosin filaments shorten and slide pass each other
Actin and myosin filaments do not shorten, but rather slide pass each other
When myofilament slide passes each other myosin filament shorten while actin filament do not shorten.
Select the correct combination of statements regarding Myasthenia gravis.
I, III, IV,V
I, III,V II
I, II, IV, V
II, III, IV, V
Change in the number of body parts is called
Continuous variation
Discontinuous variation
Meristic variation
Substantive variation
