Label the pans marked in the human skull and select the correct option
A - Temporal bone; B - Parietal bone; C - Sphenoid bone; D - Frontal bone; E - Zygomatic bone; F - Occipital bone
A - Frontal bone; B - Zygomatic bone; C - Occipital bone; D - Sphenoid bone; E - Parietal bone; F - Temporal bone
A - Sphenoid bone; B - Occipital bone; C - Zygomatic bone; D - Parietal bone; E - Frontal bone; F - Temporal bone
A - Sphenoid bone; B - Zygomatic bone; C - Occipital bone; D - Frontal bone; E - Temporal bone; F - Parietal bone
A - Sphenoid bone; B - Zygomatic bone; C - Occipital bone; D - Frontal bone; E - Temporal bone; F - Parietal bone
C.
A - Sphenoid bone; B - Occipital bone; C - Zygomatic bone; D - Parietal bone; E - Frontal bone; F - Temporal bone
In the above figure,
A - Sphenoid bone: It is an unpaired bone of the neurocranium.
B - Occipital bone: It is the trapezoidal shaped bone found at the lower back area of the cranium.
C - Zygomatic bone: These are the two facial bones that form the cheeks and the lateral walls of the orbits.
D - Parietal bone: These are the two bones in the skull which, when joined together at a fibrous joint, form the sides and roof of the cranium.
E - Frontal bone: It is a bone in human skull. It makes up the bony part of the forehead.
F - Temporal bone: It is found at the sides and base of the skull. It consists of 5 parts.
Which of the following statement is wrong regarding conduction of nerve impulse?
In a resting neuron, the axonal membrane is more permeable to K+ ions and nearly impermeable to Na+ ions.
Fluid outside the axon has a high concentration of Na+ and low concentration of K+, in a resting neuron
Ionic gradients are maintained by Na-K pumps across the resting membrane, which transport 3 Na+ ions outwards for 2K+ ions into the cell.
Resting potential is the electrical potential difference across the resting membrane
Resting potential is the electrical potential difference across the resting membrane
The 'U' shaped bone present at the base of the buccal cavity is
Maleus
Ethmoid
Zygomatic
Hyoid
Hyoid
When percentage saturation of haemoglobin with O2 is
plotted against pO2 the curve obtained is
J shaped
Hyperbola
Sigmoid
U shaped
U shaped
Choose the wrongly matched pair
Portion of myofibril between two 'Z' lines – Sarcomere
Isotropic band – Actin
Anisotropic band – Myosin
Central part of I-band – M-line
Central part of I-band – M-line
Which of the following statement is wrong ?
Sella turcica is a bony cavity where the pituitary gland is located
Parathyroid hormone decreases the Ca2+ levels in blood
Thymosins play a major role in T cell differentiation
The middle layer of adrenal cortex is zona fasciculata
The middle layer of adrenal cortex is zona fasciculata
The striated appearance of a myofibril is due to the distribution pattern of
actin and myosin
fascicles
troponin
meromyosin
meromyosin
Match the hormones secreted by various endocrine structures and choose the correct option.
| Column I | Column II |
| i. Hypothalamus | (A) Melanocyte stimulating hormone |
| ii. Pars intermedia | (B) Aldosterone |
| iii. Pineal gland | (C) Gonadotrophin releasing hormone |
| iv. Adrenal medulla | (D) Melatonin |
| v. Adrenal cortex | (E) Catecholamines |
i - E; ii - A; iii - D; iv - B; v - C
i - E; ii - D; iii - A; iv - B; v - C
i - B; ii - D; iii - A; iv - C; v - E
i - C; ii - A; iii - D; iv - B; v - E
i - C; ii - A; iii - D; iv - B; v - E
Chylomicrons are
small fat globules coated with protein
protein molecules coated with fat
small granules found in gastric juice
neural signals that stimulate, intestinal secretions
neural signals that stimulate, intestinal secretions
