Peristalsis
Peristalsis: Peristalsis is the wave-like contraction of smooth muscles in the digestive tract that moves food through the esophagus, intestines, and other hollow organs.
Category Archives: Anatomy
Thoracic Abdominal Arteries Chart
Thoracic Abdominal Arteries Chart: This chart maps the major arteries branching from the thoracic and abdominal aorta, such as intercostal, celiac, mesenteric, and renal arteries that supply the torso and organs.
Lipid Absorption
Lipid Absorption: Lipid absorption occurs primarily in the small intestine, where bile salts emulsify fats and lipase enzymes break them down; the resulting fatty acids and monoglycerides form micelles and are absorbed by enterocytes.
Embryonic Development of Heart
Embryonic Development of Heart: The heart begins as a simple tube and folds into a four-chambered organ through a series of stages, with beating beginning around week 4 of development.
Germ Layers
Germ Layers: The three primary germ layers—ectoderm, mesoderm, and endoderm—form during gastrulation and give rise to all tissues and organs in the developing embryo.
Capillary Bed
Capillary Bed: Capillary beds are networks of microscopic vessels where exchange of oxygen, nutrients, and waste occurs between blood and surrounding tissues, regulated by precapillary sphincters that control blood flow.
Major Systematic Veins
Major Systematic Veins: Major systemic veins include the superior and inferior vena cava, jugular veins, subclavian veins, and iliac veins, all channeling deoxygenated blood back to the heart.
Major Systemic Artery
Major Systemic Artery: The major systemic artery is the aorta, which distributes oxygenated blood from the left ventricle to the entire body via its ascending, arch, and descending sections.
Comparison of Artery and Vein
Comparison of Artery and Vein: Arteries have thick, muscular walls to handle high pressure and carry blood away from the heart, while veins have thinner walls, valves, and carry blood back to the heart under lower pressure.
Large Medium Vein Venule
Large Medium Vein Venule: Venous return involves small venules merging into medium and large veins; these vessels have thinner walls than arteries and contain valves to prevent backflow.
Histology of Stomach
Histology of Stomach: Stomach histology includes mucosal layers with gastric pits and glands containing cells that secrete acid, enzymes, and mucus, supported by muscularis layers for churning.
Heart Position in Thorax
Heart Position in Thorax: The heart is positioned in the mediastinum of the thoracic cavity, slightly left of the midline, with its apex pointing downward and to the left, resting on the diaphragm.
Embryonic Folding
Embryonic Folding: Embryonic folding transforms the flat trilaminar disc into a three-dimensional body, forming the basic body plan and enclosing the gut tube within the embryo.
Structures of the Mouth
Structures of the Mouth: The mouth contains the lips, teeth, tongue, salivary glands, hard and soft palate, and the oropharynx, playing roles in digestion, speech, and sensory reception.
Structure and Histology of a Lymph Node
Structure and Histology of a Lymph Node: Lymph nodes have a cortex rich in lymphocytes and a medulla containing sinuses and macrophages, acting as filters to trap pathogens and facilitate immune responses.
Divisions of the Pharynx
Divisions of the Pharynx: The pharynx is divided into the nasopharynx (air passage), oropharynx (shared air and food passage), and laryngopharynx (leading to the esophagus and larynx).
Body Anatomy Organs Image
Diagram Of Px Human Brain Development Timeline Image
Before we have a look at the brain diagram, it is important to go through a few facts about the brain and its function. This will help you understand the anatomy of the brain better. The average dimension of the View Diagram Diagram Of Px Human Brain Development Timeline Image
Dental Crowns Man Image
A dental crown was used to repair the broken tooth. His lower teeth were also whitened. 3. Before: this was a case of a woman that had a missing tooth on the upper back teeth. (at the left side of View Diagram Dental Crowns Man Image
Child Asthma Image
