adrenal medulla
nervous
Muscarinic receptors bind acetylcholine, which is a neurotransmitter in the parasympathetic nervous system. Activation of muscarinic receptors leads to various physiological responses in organs and tissues innervated by parasympathetic neurons.
the brain,spinal cord and the nerves
Sweat glands and piloerector muscles in the skin do not receive dual innervation, meaning they are only innervated by the sympathetic nervous system. This allows for a coordinated response in the body's fight-or-flight response.
Collateral ganglia contain neurons that primarily innervate tissues and organs in the abdominal and pelvic cavities. These ganglia are part of the autonomic nervous system, specifically the sympathetic division, and they help regulate functions such as digestion and urinary processes by connecting to various target organs.
Most tissues in the body are innervated, meaning they receive nerve supply from the nervous system. This includes muscles, organs, skin, blood vessels, and glands. Innervation plays a crucial role in controlling various functions and responses of these tissues.
The nervous system is made of neurons (cells) and their supporting connective tissues.
Neurons
Motor Neurons and the chemical and electrical interactions between them carry information from the central nervous system to tissues.
Innervated tissue refers to any type of tissue that is supplied with nerves, enabling it to receive signals from the nervous system. This can include various types of tissues, such as muscle, skin, and organs, allowing them to respond to stimuli and perform functions like movement, sensation, and regulation. The presence of nerves is crucial for communication between the tissue and the central nervous system.
Yes, the sympathetic nervous system can cause vasodilation in certain situations, such as during exercise or in response to stress. This is because the sympathetic system releases certain neurotransmitters that can relax blood vessels and increase blood flow to muscles and other tissues.
the autonomic nervous system (ANS) includes the peripheal nerves and ganglia on either side of the spinal cord ( note: some textbooks include the ANS as a division pf the peripheal nervous system both ways are correct.)