Control and Coordination

Receptors are usually located in __________-

sense organs

_____________- detects taste

gustatory

_____________ detect smell

olfactory

The information is recieved at the _________ of a nerve cell

dendritic tip

The chemical reaction to create an electric impulse takes place at the ______

dendritic end

At the _________________ the electrical impulse sets off the release of some chemicals

axonal ends

__________ is the part of the neuron through which information travels

axon

_________ is a plant hormone present in the shoot tips that stimulates growth towards sunlight

auxin

_________ is a system of connection for rapid response to stimuli without involving the brain

reflex arc

The brain is divided into the left and right brain by the ___________

corpus colosum

Reflex arcs have evolved as ________ process is not fast enough

thinking

___________ have evolved as a way of functioning in the absence of a true thought process

reflex arcs

Central nervous system constitutes of the ___________

brain and spinal cords

The communication between the central nervous system and the rest of the body occurs with the help of the __________________

peripheral nervous system

_________ is the main thinking part of the brain

forebrain

Sepratate areas of the __________ part of the brain are speacialised for hearing , smell , sight and so on.

forebrain

Blood pressure , salivation and vommiting are controlled by the _________ in the ________

medulla , forebrain

_____________ is responsible for precision of voluntary action

cerebellum

__________ protects the spinal cord

vertebral column

Muscle cells have ____________ to help change their shapes

contractile

Climbers have _____ which are sensitive to touch

tendrils

__________ are plant hormones which are presenet on the shoot tips

auxins

_____ are plant hormones that stiulate the growth of the stem

gibberllins

_____________ are the plant hormones that promote cell division

cytokinins

_______________ is a hormone that inhibits growth and affects the working of leaves

Abscisic acid

_________________ controls the release of most horomones

Hypothalamus

____________ releases growth hormone

pituitary gland

_____________ hormone stimulates growth in all organs

growth homrone

Pituitary gland releases _____________

growth hormone

Thyroxine is released by _________

thyroid gland

____________- hormone regulates metabolism and body growth

thyroxine

Thyroid gland secretes ______

thyroxine

___________ regulates blood sugar levels

insulin

Insulin is produced by ____________-

pancreas

Pancreas produce ____________-

insulin

__________ controls the development of secondary sexual charecterisitics in males

testosterone

Testostereone is secreted in ________

testes

Oestrogen is produced in _____________

ovaries

Releasing hormones is produced by the _________

hypothalamus

________- stimulates the pituitary gland to release hormones

Releasing hormones

_________________ controls the development of female sex organs and regulates menstrual cycle and pregnancy

oestrogen

Iodine is required for the synthesis of __________

thyroxine

_______ are the receptors of heat

Theroreceptors

_________ are the receptors of sound

Phenoreceptors

__________ are the receptors of pain

Nociceptors

Some neurons have a covering to protect the axon called ______

Myelin sheath

The gaps between myelin sheaths are called

node ranveer

Myelinated neurons propagtes signals faster/slower?

faster

____________ are the chemical substances

_______ is a small sac present at the end of axon terminals that contains neurotransmitters

synaptic knob

___________ is the point where muscle fibres comes in conact with a motor neuron carrying a nerve impulse from the central nervous system.

Neuromuscular Junction

What are the types of nuerons

Sensory neurons , relay neurons , motor neurons

What are the types of movement performed by the nervous system

Voluntary actions , involutary actions , reflex actions

____________ executes the command by using neuromuscular movements

effectors

_________ is the smallest part of the brain

midbrain

Hindbrain consits of ________ and ________

cerebrum , diencepheron

_________ part of the brain controls all voluntary activities like thinking , reason , speech , movement and emotions.

Cerebrum , diencephelon

The diencephalon consists of _______ and ________

thalamus , hypothalamus

_____________ controls body temperature , hunger and sleep cycle

hypothalamus

________ is the relay centre of the brain

thalamus

pituitary gland is present in the ____________

hypothalamus

hindbrain consists of the following parts

cerebellum , pons , medulla oblangata

_________ is the bony box that provides mechanical protection to the brain

cranium

Which are the type of nerves

Cranial nerves , spinal nerves , visceral nerves

___________ are the nerves that arise from the spina cord and attach to the internal organs of the body

visceral nerves

___________ are the nerves which emerge from the brain and spread thought the head

cranial

__________ are the nerves that emerge from the spinal cord and spread throughout the body

spinal nerves

_________ is caused by the lack of growth hormone

dwarfism

____________ is caused by the surplus of growth hormone

gigantism

_______ is caused by the lack of thyroxine hormone

Goitre

_________ is caused by the lack of insulin

diabetes mellitus

________ is charecterised by a swollen neck region near the thyroid gland

goitre

____________ leads to rise in blood sugar levels

diabetes mellitus