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The ears of a macaque monkey and most other monkeys have far more developed muscles than those of humans, and therefore have the capability to move their ears to better hear potential threats. [40] Humans and other primates such as the orangutan and chimpanzee however have ear muscles that are minimally developed and non-functional, yet still ...
skin: coiled tubular 11 Esophageal glands: esophagus: mucous racemose 12 Exocrine pancreas: pancreas: serous tubulo-acinar 13 Gastric chief cell, Wasmann's glands stomach: serous 14 Glomus coccygeum, coccygeal gland, Luschka's gland or gangliona coccyx, near the tip 15 Goblet cells: digestive tract, respiratory tract: mucous simple unicellular ...
The human body consists of biological systems, that consist of organs, that consist of tissues, that consist of cells and connective tissue. The history of anatomy has been characterized, over a long period of time, by a continually developing understanding of the functions of organs and structures in the body.
[23] [24] [25] Analogous organs in other animals similar to humans continue to perform similar functions. The coccyx, [26] or tailbone, though a vestige of the tail of some primate ancestors, is functional as an anchor for certain pelvic muscles including: the levator ani muscle and the largest gluteal muscle, the gluteus maximus. [27]
It is called preauricular sinus which, according to the U.S. National Institutes of Health, or NIH, "generally appears as a tiny skin-lined hole or pit, often just in front of the upper ear where ...
On the trunk of the body, the chest is referred to as the thoracic area. The shoulder in general is the acromial, while the curve of the shoulder is the deltoid.
Tests of animal bones found nearby suggest that the climate was harsh — comparable to modern-day Siberia. That means humans were having success in an extreme climate some 45,000 years ago.
Researchers found that applying the dye to skin allowed them to see the blood vessels of the brain and watch as the organs and muscles underneath the skin worked. The researchers conducted the ...