1. Features Rod cells Cone cells Visual acuity high low
2. Visual pigment contained iodopsin rhodopsin
3. Overall function vision in poor light colour vision and detailed vision in bright light
4. Distribution More concentrated in centre of retina eventually distributed over retina
Overall function vision in poor light colour vision and detailed vision in bright light
1. First negative then positive and again back to negative
2. First positive then negative and continue to be negative
3. First negative then positive and continue to be positive
4. First positive then negative and again back to positive
First negative then positive and again back to negative
1. Neurons regulate endocrine activity but not vice versa
2. Endocrine glands regulate neural activity and nervous system regulated endocrine glands
3. Neither hormones control neural activity nor the neurons control endocrine activity
4. Endocrine glands regulate neural activity but not vice versa
Neurons regulate endocrine activity but not vice versa
1. Acetylcholine
2. Epinephrine
3. Norepinephrine
4. Cortisone
Cortisone
1. Osteocytes
2. Malpighian layer of the skin
3. Liver cells
4. Neurons
Neurons
1. knee-jerk response
2. pupillary reflex
3. swallowing of food
4. peristalsis of the intestines
peristalsis of the intestines
1. Movement of the eye ball
2. Swallowing
3. Movement of the tongue
4. Movement of the neck
Movement of the eye ball
1. acetylcholine
2. norepinephrine
3. dopamine
4. GABA
dopamine
1. three ions of Na +are pumped out and two K +are taken in
2. three ions of Na + and taken in and two K + are pumped out
3. two ions of Na + are thrown out and three K + are absorbed
4. three ions of K + are absorbed and three Na +' are spumped out
three ions of Na +are pumped out and two K +are taken in
1. liver cells
2. brain cells
3. bone cells
4. epidermal cells
brain cells