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Hyaline cartilage provides structural support in the respiratory system (larynx, trachea and bronchi). The airway of the trachea is held open by cartilaginous rings of hyaline cartilage.

Your trachea divides into your left and right bronchi. The bronchi carry air into your lungs. At the end of the bronchi, the bronchioles carry air to small sacs in your lungs called alveoli. The alveoli perform your body's gas exchange.

Furthermore, bronchioles are air passages inside the lungs that branch off like tree limbs from the bronchi—the two main air passages into which air flows from the trachea (windpipe) after being inhaled through the nose or mouth. The bronchioles deliver air to tiny sacs called alveoli where oxygen and carbon dioxide are exchanged.

Ciliated columnar epithelium is found mainly in respiratory tract as well as in fallopian tube. In the respiratory tract, it is found in tracheal and bronchial regions of the pulmonary system. As the name implies, it has a hair-like projections called cilia. Together with cilia, it also contain many goblet cells that produced mucus to form a…[Read more]

Epiglottis is a flap of elastic cartilage found in the throat behind the tongue and in front of the larynx. At rest, the epiglottis is usually up right allowing air to pass into the larynx and lungs. It is letting the person to breathe. When you are swallowing, the epiglottis folds backward to prevent the entrance of food and liquid in the…[Read more]

Aside from the end of the bones as articular cartilage, hyaline cartilage are also found in the nose, trachea, larynx and bronchi. Hyaline cartilage provide structural support in respiratory system. The linings of trachea are held open by cartilaginous rings of hyaline cartilage.

Sources; https://bio.davidson.edu/people/kabernd/BerndCV/Lab/EpithelialInfoWeb/CiliatedColumnarEpithelium.html https://medlineplus.gov/ency/imagepages/19595.htm https://www.britannica.com/science/hyaline-cartilage https://histologyguide.com//slideview/MH-136-trachea/05-slide-1.html

The trachea, known as the windpipe, is a tube-like structure within the neck and upper chest that connects the larynx to the bronchi. It transports air to and from the lungs when a person breathes. It is lined with a pseudostratified columnar epithelium with cilia and goblet cells.

The epiglottis is a cartilaginous structure at the posterior of the tongue that folds over the opening of the trachea during swallowing. It contains a series of elastic cartilages that provide semi-rigid support to the epiglottis.

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The gallbladder is a sac located under the liver. It stores and concentrates bile produced in the liver. Bile aids in the digestion of fat and is released from the gallbladder into the upper small intestine in response to food (especially fats).

The pancreatic acinar cell is the functional unit of the exocrine pancreas. It synthesizes, stores, and secretes digestive enzymes. Under normal physiological conditions, digestive enzymes are activated only once they have reached the duodenum.

The hepatic lobule is the anatomic unit of the liver. In the anatomic model, liver lobules are organized into irregular polygons demarcated by connective tissue and composed of plates of hepatocytes radiating outward from the central vein to the portal triads.

The first photo is the large intestine. Large intestine actually have 3 parts; the colon, rectum and anus. It absorbs water and electrolytes. It is where foods turn into stool and being excreted from the body when you poop.

The middle photo is the ileum. It is the last part of the small intestine and connects to the first part (cecum) of the large intestine. The ileum helps to further breakdown foods coming from the stomach and small intestines. It absorbs nutrients such as minerals , vitamins, fats, carbohydrates, proteins and water from the foods so they can be…[Read more]

The last photo is the smooth muscle. Smooth muscle tissues are found on the intestinal wall. It generates tonic contractions that maintains the proportions of the organ when the stomach is loaded with foods and forceful contractions.

References Bitar, K. N. (n.d.). Function of gastrointestinal smooth muscle: from signaling to contractile proteins. PubMed. Retrieved April 19, 2022, from https://pubmed.ncbi.nlm.nih.gov/12928070/ Colon (Large Intestine): Function, Anatomy & Definition. (2021, December 8). Cleveland Clinic. Retrieved April 19, 2022, from…[Read more]

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