Question

The part of the nervous system which controls the heartbeat rate is called
A. Central NS
B. PNS
C. ANS
D. Somatic NS

Answer 1

Hint: The brain is the controlling centre of the body that instructs and guides all the body parts and thus, it must be shielded from any injury and shocks and thus, it is roofed in the bony coverings.

Complete answer: The brain is a fragile organ which protects against injuries and shocks. The hard covering over the delicate organs helps in preventing any direct shock or injury to the organ. The brain, i.e., the master organ of the body is protected by the hard bony covering called the skull or cranium and the three thin membranes are called meninges. The cerebrospinal fluid (CSF) is present between the meninges and the brain, which acts as a shock and thus, helps in the protection of the brain. It also plays an important role in providing nutrition to the brain and removes wastes from the brain.
a) The central nervous system: The brain and the spinal cord are the part of the central nervous system. It helps to store sensory information and control different organs to point out the response.
b) The peripheral nervous system: It helps to hold the sensory information from the receptor to the brain and then to the effector.
c) ANS: It is also called an autonomic neural system. it's a neighbour of PNS. It consists of the medulla
Which acts as a centre for the heartbeat
d) Somatic nervous system: it's a neighbour of the PNS. It controls the functioning of internal organs.
Hence, the correct answer is option C.

Additional information: Brain consists of three parts:
i. Forebrain - It is the foremost part of the brain, that controls all actions done voluntarily by the body.
ii. Midbrain - It is present between the forebrain and the hindbrain and is involved with involuntary actions of the body.
iii. Hindbrain – It is the last part of the brain which further continues to the spinal cord, its three different regions called pons, medulla and cerebellum controls involuntary actions like precision, salivation, vomiting, etc.

Note: The spinal cord is present below the brain and extends to the backbone or vertebral column (covering), and it controls and regulates reflex actions. Both the brain and spinal cord work together to control all the major functions of the body.