Histology
Histology is the microanatomy method and a branch of biology that studies the anatomy of tissues. It includes viewing tissue in a magnified view under the microscope. Microanatomy also includes the process of study of organs called organology and the study of cells called cytology. Histopathology is a branch of biology that includes microscopic identification of diseased tissue. The field of histology comprises the preparation of the tissues and collection of cells as specimens for examination under the microscope. These processes are done by technicians like histologists, histotechnicians, and biomedical scientists. Histopathology is the diagnosis and research of tissue diseases that require the examination of tissues and/or cells under a microscope. Histopathologists are in charge of determining tissue diagnosis and assisting clinicians in managing a patient's care.
Endocrine System
Human body functions due to the collective work of the organ systems. One of them is the endocrine system. It is a chemical messenger system constituting the hormones directly released by the endocrine glands into the circulatory system. The study of this system is known as endocrinology. The word 'endon' means inside, and 'crine' means secrete, making the word "endocrine."
Identify the location of both multiunit smooth muscle and single-unit smooth muscle, and explain the difference in how each is regulated.
Smooth muscles as the name suggests, are smooth in appearance i.e. they do not have striations on them.
There are multiple organs and places where these muscles are found in our body starting from the iris of eye to the digestive system walls.
Smooth muscles are involuntary in nature.
There are further two subtypes of smooth muscles:
1) Multi-unit smooth muscles
2) Single- unit smooth muscles
Single-unit smooth muscles-
1) They are more common type.
2) In single-unit smooth muscles the muscle fibres are joined end to end via gap junctions, so as to make it a single unit. So, whenever muscle contract, it contracts as a single unit.
3) These types of muscles are present in Visceral organs except Heart.
Example- lungs, digestive system , excretory system etc.
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