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2. Anatomy - Wikipedia

   en.wikipedia.org/wiki/Anatomy

   Anatomy (from Ancient Greek ἀνατομή (anatomḗ) ' dissection ') is the branch of morphology concerned with the study of the internal structure of organisms and their parts. [1] Anatomy is a branch of natural science that deals with the structural organization of living things. It is an old science, having its beginnings in prehistoric ...

3. Cell biology - Wikipedia

   en.wikipedia.org/wiki/Cell_biology

   Category. v. t. e. Cell biology (also cellular biology or cytology) is a branch of biology that studies the structure, function, and behavior of cells. [1][2] All living organisms are made of cells. A cell is the basic unit of life that is responsible for the living and functioning of organisms. [3] Cell biology is the study of the structural ...

4. Human body - Wikipedia

   en.wikipedia.org/wiki/Human_body

   The internal human body includes organs, teeth, bones, muscle, tendons, ligaments, blood vessels and blood, lymphatic vessels and lymph. The study of the human body includes anatomy, physiology, histology and embryology. The body varies anatomically in known ways.

5. Histology - Wikipedia

   en.wikipedia.org/wiki/Histology

   Histology. Histologic specimen being placed on the stage of an optical microscope. Human lung tissue stained with hematoxylin and eosin as seen under a microscope. Histology, [help 1] also known as microscopic anatomy or microanatomy, [1] is the branch of biology that studies the microscopic anatomy of biological tissues. [2][3][4][5] Histology ...

6. Comparative physiology - Wikipedia

   en.wikipedia.org/wiki/Comparative_physiology

   Comparative physiology. Comparative physiology is a subdiscipline of physiology that studies and exploits the diversity of functional characteristics of various kinds of organisms. It is closely related to evolutionary physiology and environmental physiology. Many universities offer undergraduate courses that cover comparative aspects of animal ...

7. Muscle tone - Wikipedia

   en.wikipedia.org/wiki/Muscle_tone

   In physiology, medicine, and anatomy, muscle tone (residual muscle tension or tonus) is the continuous and passive partial contraction of the muscles, or the muscle's resistance to passive stretch during resting state. [1][2] It helps to maintain posture and declines during REM sleep. [3] Muscle tone is regulated by the activity of the motor ...

8. Physiology - Wikipedia

   en.wikipedia.org/wiki/Physiology

   e. Physiology (/ ˌfɪziˈɒlədʒi /; from Ancient Greek φύσις (phúsis) 'nature, origin' and -λογία (-logía) 'study of') [1] is the scientific study of functions and mechanisms in a living system. [2][3] As a subdiscipline of biology, physiology focuses on how organisms, organ systems, individual organs, cells, and biomolecules ...

9. Neuroscience of sex differences - Wikipedia

   en.wikipedia.org/wiki/Neuroscience_of_sex...

   The neuroscience of sex differences is the study of characteristics that separate brains of different sexes. Psychological sex differences are thought by some to reflect the interaction of genes, hormones, and social learning on brain development throughout the lifespan. A 2021 meta-synthesis led by Lise Eliot found that sex accounted for 1% of ...