a coincise summary of animal responses including : blood vessels, heart structure, tissue fluid formation, co2 transport, haemoglobin.
Diagrams embedded to visualise structure of vessels and heart better
bullet points to summarise sequence of events
key words highlighted for better recall
● Cerebrum: most of mass, controls thoughts + actions. Split into 2 hemispheres
connected by corpus callosum
, ● Frontal lobe: emotions, reasoning, problem solving + planning
● Temporal: sensory processing of hearing, memory formation, language, facial
recognition
● Occipital: visual processing
● Parietal: integrates sensory info
● Cerebellum: coordinates balance, movement + body posture (fine motor control)
● Medulla oblongata: regulate breathing, swallowing, circulation, digestion + sneezing
reflex. Connects spinal cord to higher regions
● Hypothalamus: thermoregulation, hunger, control pituitary gland, secretes ADH
Sympathetic Nervous System
fight or flight response.
➢ Preganglionic nerves release Ach at synapses
➢ Norepinephrine: btw postganglionic nerves + effectors
Binds with adrenergic receptors in blood vessels, heart, eye muscles, exocrine
glands
➢ Ach stimulates sweat glands
Inhibits peripheral vision to focus sight on potential danger
Parasympathetic System
rest and digest
➢ Pre + postganglionic neurones release Ach at synapses
➢ Ach binds with muscarinic receptors in eye muscles, bronchioles, heart, smooth
muscle in digestive tract
Sympathetic Parasympathetic
Heart rate Increased decreased
Blood vessels Vasoconstriction Vasodilation
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