Try the Reflex
actions test once you have read this page.
Remember an effector
makes the animal carry out a response, it can be a muscle or a gland.
are simple forms of behaviour designed to keep the animal safe. They involve
only a few neurones (nerve cells). A sensory neurone
Most have a relay
neurone (but not all, the knee jerk reflex does not). and a motor
||Rods and cones
adjust pupil diameter, wide in dim light, narrow in bright light.
|| Tapping patellar
. tendon stretch receptors
||Lower leg kicks
forwards due to sudden contraction of front thigh muscles
|| Increased sweat
release to cool body surface down.
on mucosa of airways
of diaphragm and internal intercostal muscles causing a violent expiration
to blow irritant material out.