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33 questions
bundle of wire-like nerves threaded through the backbones, through which electrical messages travel between the brain and body.
vertabrae
spinal cord
brain
a body system that controls and coordinates all body activities through electric impulses/messages between brain, spinal cord and nerves.
endocrine system
nervous system
main organ of the nervous system. protected by the skull, and made of neurons, it is the control center for all actions, thoughts and emotions.
brain
lungs
gland
heart
Identify the part of the neurone labelled 1 in the diagram.
Axon
Dendrite
Knob
Cell body
The junction where one neuron can transfer an impulse to another structure.
interneuron
hormone
nerve impulse
synapse
Endocrine glands secrete _
Hormones
Neurotransmitters
A wide range of chemical substances
What is the main function of the endocrine system?
It creates chemicals, or hormones, that are sent around the body to maintain homeostasis.
It creates electrical messages that are sent around the body to maintain homeostasis.
It maintains the correct level of oxygen in the body to maintain homeostasis.
It releases waste from the body to maintain homeostasis.
Which of the following are chemicals that travel in the blood and cause changes in different parts of the body?
Hormones
Glands
Parathyroid
Adrenal Gland
Hormone regulation operates under which type of feedback mechanism?
positive feedback
negative feedback
zero feedback
Hormones are not regulated
Which cell relays messages from one tissue to another?
Red Blood Cell-RBC
White Blood Cell-WBC
Neuron
Tissue
The CENTRAL nervous system is made up of which two organs?
Brain and Spinal Cord
Spinal Cord and Peripheral Nerves
Peripheral Nerves and Heart
Heart and Lungs
What are the 2 major divisions of the peripheral nervous system (PNS)?
Sensory & Motor
Peripheral & Central
Somatic & Autonomic
Brain & Spinal Cord
Which part of the eye protects the front of the eye?
Sclera
Cornea
Vitreous humor
Optic nerve
What is the part of the eye represented by letter H?
Suspensory ligaments
Lens
Iris
Pupil
What is this?
Ear Drum
Ear Canal
Pinna
Hammer
Cochlea
What is this?
Pinna
Hearing Nerve
Cochlea
Ear Drum
Anvil
What is this?
Anvil
Hammer
Stirrup
Ear Canal
Ear drum
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