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The discipline of anatomy can be subdivided into a number of branches, including gross or macroscopic anatomy and microscopic anatomy. [10] Gross anatomy is the study of structures large enough to be seen with the naked eye, and also includes superficial anatomy or surface anatomy, the study by sight of the external body features.
A Wiggers diagram, named after its developer, Carl Wiggers, is a unique diagram that has been used in teaching cardiac physiology for more than a century. [1] [2] In the Wiggers diagram, the X-axis is used to plot time subdivided into the cardiac phases, while the Y-axis typically contains the following on a single grid: Blood pressure. Aortic ...
[1] [2] The counterpart to gross anatomy is the field of histology, which studies microscopic anatomy. [1] [2] Gross anatomy of the human body or other animals seeks to understand the relationship between components of an organism in order to gain a greater appreciation of the roles of those components and their relationships in maintaining the ...
The ear canal stretches for about 1 inch (2.5 cm). The first part of the canal is surrounded by cartilage , while the second part near the eardrum is surrounded by bone . This bony part is known as the auditory bulla and is formed by the tympanic part of the temporal bone .
These hormones promote the production of insulin-like growth factor-1 (IGF-1), which plays a key role in the formation of new bone cells. Adequate nutrient intake is essential for the production of these hormones, which are critical for proper bone growth. However, a lack of proper nutrition can hinder this process and result in stunted growth.
The next branch from the abdominal aorta is the superior mesenteric artery, which supplies the regions of the digestive tract derived from the midgut, which includes the distal 2/3 of the duodenum, jejunum, ileum, cecum, appendix, ascending colon, and the proximal 2/3 of the transverse colon.
In a disorder known as rachitis fetalis anularis the ends of the long bones (epiphyses) are enlarged. [2] Another disorder, rachitis fetalis micromelica, is a deficiency in the growth (as a shortness) of the bones. [2] There is a surgical procedure called distraction osteogenesis which is used to lengthen long bones. [3]
Physiology (/ ˌ f ɪ z i ˈ ɒ l ə dʒ i /; from Ancient Greek φύσις (phúsis) 'nature, origin' and -λογία () 'study of') [1] is the scientific study of functions and mechanisms in a living system.