Heart sound dub is caused due to closing of

• valve

• tricuspid valve

• semilunar valve

• None of the above

Posterior pituitary gland

• produces and store hormones

• stores 6 trophic honnones

• stores and releases ADH and oxytocin

• release and store growth and thyroid stimulating hormone

Cranial nerve showing maximum branching is

• trigeminal

• vagus

• optic

• facial

Which of the following is a part of pectoral girdle?

• Ilium

• Ischium

• Acetabulum

• Glenoid cavity

Heart beats originates from

• pace maker

• cardiac muscles

• left atrium

• right ventricle

The instrument used for measuring blood pressure is

• electrocardiograph

• X-rays

• sphygmomanometer

• electroencephalograph

Gonadotrophins are secreted from

• gonads

• anterior pituitary

• posterior pituitary

• antidiuretic hormone

Earthworms are economically important for man as these are used as

• bait for catching fish

• food of poultry

• medicine for gout

• All of the above

Water vascular system is characteristic of

• Protozoa

• Porifera

• Annelida

• Echinodermata

Proximal and distal convoluted tubules are parts of a

• nephron

• oviduct

• vas deferens

• caecum