Control and coordination Worksheet-19

Control and coordination Worksheet-19

 

Subjective questions:

  1. Mention the source gland of thyroxine.

 

  1. What are the major divisions of the fore-brain?

 

  1. Name the major lobes of cerebral hemisphere.

 

  1. Give two functions of spinal cord.

 

  1. Name the part of brain which is a centre of perception of visual secretion.

 

  1. Which part of brain act as a centre of sensation of taste and smell?

 

  1. Which part of brain act as a centre of sensation of pitch and loudness of sound?

 

  1. Which part of brain act as a centre for balance of the body?

 

  1. What is the study of hormones called?

 

  1. Name the glands which secrete estrogen and progesterone.

 

  1. Give the function of parathormone.

 

  1. Give two examples of reflex actions performed in our daily life.

 

  1. Name the place of the human body where largest number of neurons are found.

 

  1. What is the chemical nature of hormone?

 

  1. Name some common functions of Nervous and Endocrine system.

 

  1. Name the part of the brain which is concerned with muscular coordination in the body.

 

  1. Name the neurons which carry impulses from receptor to brain.

 

  1. Name the neuron which transmit impulses from brain to the effector organ.

 

  1. Name the lower part of brain which contains reflex centre.

 

  1. State one main function of neuron.

 

Answer:

  1. Thyroid gland.

 

  1. Major divisions of the fore brain are cerebrum and olfactory lobes.

 

  1. Major lobes of cerebral hemisphere are occipital, temporal, frontal, parietal and olfactory lobes.

 

  1. Functions of Spinal Cord :

– Spinal cord is the main centre of reflex action.

– It is concerned with the conduction of nerve impulses to and from the brain.

 

  1. Occipital lobe.

 

  1. Parietal lobe.

 

  1. Auditory area in Temporal lobe.

 

  1. Cerebellum.

 

  1. Endocrinology.

 

  1. Ovaries.

 

  1. Parathormone regulates calcium and phosphate levels in the blood.

 

  1. Two examples are:

(i)     When we put our hand in hot water, we withdraw our hand from the water.

(ii)    We blink our eyes when a particle of dust touches the eyelids.

 

  1. Brain.

 

  1. Chemically hormones are not always protein, but they are of different chemical nature. They may be protein as insulin, polypeptide like parathyroid hormone.

 

  1. Regulation and integration of body process and maintenance of homeostasis condition are the common functions of both nervous and endocrine system.

 

  1. Cerebellum.

 

  1. Sensory neurons.

 

  1. Motor neurons.

 

  1. Spinal cord.

 

  1. Neuron is the functional unit of nervous system.