Related Experiment Video

Updated: Aug 7, 2026

Microdissection of Black Widow Spider Silk-producing Glands
09:47

Microdissection of Black Widow Spider Silk-producing Glands

Published on: January 11, 2011

Fine structural aspects of silk secretion in a spider. II. Conduction in the pyriform glands

J Kovoor, L Zylberberg

    Tissue & Cell
    |January 1, 1982
    PubMed

    More Related Videos

    Synthetic Spider Silk Production on a Laboratory Scale13:36

    Synthetic Spider Silk Production on a Laboratory Scale

    Published on: July 18, 2012

    Microfluidic Dry-spinning and Characterization of Regenerated Silk Fibroin Fibers08:28

    Microfluidic Dry-spinning and Characterization of Regenerated Silk Fibroin Fibers

    Published on: September 4, 2017

    Related Concept Videos

    Overview of Secretory Vesicles01:33

    Overview of Secretory Vesicles

    Secretory vesicles, also known as dense core vesicles (DCVs), are membrane-bound vesicles that transport secretory proteins, such as hormones or neurotransmitters. Regulated secretory vesicles transport proteins from the trans-Golgi network to the exterior of the cell. Proteins present in regulated secretory vesicles are required to be rapidly exocytosed in large amounts upon a specific stimulus.
    Various proteins regulate the aggregation of molecules inside the secretory vesicles. Chromogranins...
    Exocrine Glands: Methods of Secretion01:08

    Exocrine Glands: Methods of Secretion

    Exocrine glands are those that release their secretions through ducts. Based on their mode of secretion, they can be classified into merocrine, apocrine, and holocrine.
    Merocrine Secretion
    Merocrine secretion is the most common type of exocrine secretion. The secretions are enclosed in vesicles and moved to the cell's apical surface, where the contents are released by exocytosis. For example, mucous, a watery secretion rich in the glycoprotein mucin, is a merocrine secretion. The eccrine glands...
    Exocrine Glands: Types of Secretions01:13

    Exocrine Glands: Types of Secretions

    Exocrine glands produce and release a variety of glandular products. Exocrine glands can be classified into serous, mucous, or mixed types based on their secretory products.
    Serous glands produce watery secretions rich in digestive enzymes and proteins. The constituent cells of the serous gland have centrally located nuclei and eosinophilic secretory granules in the cytoplasm. The parotid gland is an example of a serous gland. It secretes saliva, which contains enzymes, such as lipases and...
    Smooth Muscle Contraction01:25

    Smooth Muscle Contraction

    Smooth muscle contraction is a complex process vital for various bodily functions, from maintaining blood vessel tension to facilitating the movement of food through the digestive tract. Unlike striated muscles, smooth muscle contraction begins more slowly and lasts longer.
    The onset of contraction is triggered by an increase in calcium ions within the sarcoplasm, similar to the process in striated muscle. However, smooth muscles have a relatively smaller reservoir of the sarcoplasmic...
    Cranial Part of Parasympathetic Division01:18

    Cranial Part of Parasympathetic Division

    The cranial part of the parasympathetic division plays a crucial role in regulating the visceral functions of the head and specific structures in the neck, thoracic, and abdominopelvic cavities. Preganglionic fibers of the parasympathetic division exit the brain through cranial nerves III (oculomotor), VII (facial), IX (glossopharyngeal), and X (vagus), delivering parasympathetic output to the respective visceral structures.
    The vagus nerve (cranial nerve X) alone accounts for approximately 75...
    Accessory Glands of the Male Reproductive System01:16

    Accessory Glands of the Male Reproductive System

    The accessory ducts involved in sperm maturation and transportation include the epididymides, vasa deferentia, ejaculatory ducts, and urethra. These ducts play a critical role in the maturation, storage, and transportation of sperm from the testes to the urethra, where it is then released during ejaculation.
    The epididymis is a small, comma-shaped organ located at the back of each testicle. The epididymis can be divided into three main parts: the head, body, and tail. The head of the epididymis...