Ayush’s action was voluntary because rushing out of his room was under his conscious control. The sense organ’s receptors collected the smoke and smell, and they sent messages to the brain. The effector organs are then instructed by the brain to leave the room.
The blow on Anshal’s back would lead to an impairment of cognitive abilities or poor functioning physically. After that, it can also cause disturbance of emotional or behavioural functioning. Cervical damage can lead to tetraplegia.
Various organs contain sensory neurons, which function similarly to the input device in computers in that they sense their surroundings and communicate that to the brain. The Central Processing Unit (CPU) and the human brain are comparable (CPU). The information acquired by the sensory neurons is processed by the brain, which then issues instructions to …
How is the human nervous system similar to computers? Read More »
Movement in sensitive plants Movement in our legs The movement of a sensitive plant is an involuntary action to the stimulus (touch). Movement in our legs is a voluntary action. No special tissue is there for the transfer of information There is a complete CNS and PNS system available for information exchange. Plant cells do …
Nervous control Hormonal Control (i) It is made up of nerve impulses between the PNS, CNS, and brain. (i)The endocrine system, which secretes hormones right into the blood, is a part of it. (ii)This place has really quick response times. (ii)This place takes so long to respond. (iii)The actions of nerve impulses are not specific. …
Reflex actions Involuntary actions (i) Quick spontaneous reactions to a stimulus without conscious brain activity (i) Takes place outside of an organism’s conscious awareness (ii) Controlled by spinal cord (ii) Is controlled by the midbrain or medulla oblongata (iii) Extremely rapid and immediate (iii)Slower than usual (iv) Possible to include any muscle or gland (iv)Only …
How are involuntary actions and reflex actions different from each other? Read More »
An organism has a variety of organs. For an organism to survive, these organs must be carefully coordinated and managed. The glands of the endocrine system secrete a variety of fluids into an organism’s body. These hormones are in charge of an organism’s general growth and development. The central nervous system is in charge of …
What is the need for a system of control and coordination in an organism? Read More »
Hormones are a unique class of chemical compounds that regulate and coordinate plant growth, development, and responses to the environment. A part of the plant produces hormones, which are then transported to all the areas that require them. The five main categories of phytohormones are ethylene, auxins, gibberellins, cytokinins, and abscisic acid. These phytohormones are …
Both the impulses coming from the nerves and the signals going to the receptors will be mixed up in the event of a spinal cord injury. These two signals combine in a spinal cord bundle. Thus, both of these signals are blocked.
Phototropism defines the plant’s directional growth and response to light. Auxin levels rise on the dark side and fall on the light side, causing phototropism. The darker side of a leaf grows more rapidly due to the presence of more auxin, causing it to bend towards the direction of the light source.
