The Autonomic Nervous System There are several circumstances that can cause an individual's heart rate to increase, such as during exercise The?brain?is involved in this response of the hear...
Investigating Variables that Affect Heart Rate There are a wide range of factors that influence the heart rate of an organism Experiments can be designed to investigate the effect of a named...
Heart Action: Initiation & Control Control of the basic heartbeat is?myogenic, which means the heart will beat without any external stimulus This intrinsic rhythm means the heart beats a...
The Human Retina The eye is a?sense organ?containing receptors sensitive to light intensity and colour Receptors?are groups of specialised cells that can generate an electrical impulse in a ...
Investigating Touch and Temperature Receptors on Skin Within the human skin, there are many temperature and touch receptors that enable humans to interpret and respond to their environment E...
Establishment of a Generator Potential When Pacinian corpuscles?are stimulated?by pressure on the skin this leads to the?establishment of a generator potential This happens due to the moveme...
The Pacinian Corpuscle Humans possess a wide range of receptor cells that can detect and respond to a large variety of?stimuli For example, temperature, taste, sound, heat and light T...
Investigating Environmental Factors That Cause Animal Movement Environmental factors can be abiotic or biotic Abiotic?factors are the?non-living?parts of an environment For example: temperat...
Reflex Arcs There are?three main types?of neurone:?sensory, relay and motor Sensory?neurones carry impulses from?receptors?to the Central Nervous System (CNS?- the brain or spinal cord) Rela...
