head

adult head

The head is the anterior-most division of the body [GO].

النوع Organ
البنية الأم subdivision of organism along main body axis
الاسم اللاتيني adult head
FMA ID 7154

البنى الفرعية

panarthropod head Organ embryonic head Organ insect larval head Organ

الأسئلة الشائعة

What structures are contained within the vertebrate head?
The vertebrate head contains the brain and brainstem (protected by the cranial vault), cranial nerves (12 pairs in humans), major sense organs (eyes, ears, nose, tongue), the jaw apparatus for feeding, teeth, major blood vessels (carotid arteries, jugular veins), and in many species, the trachea and esophageal openings.
How is the head distinguished from the neck anatomically?
The head is demarcated from the neck at the base of the skull (craniocervical junction), where the foramen magnum allows the brainstem to continue as the spinal cord. The atlas (C1) and axis (C2) vertebrae support the head and enable its rotational movements.
What is the evolutionary significance of cephalization?
Cephalization is the evolutionary tendency for nervous tissue, sensory organs, and feeding apparatus to concentrate in an anterior head region. This improves coordination of the body's leading end — the first part to encounter the environment — providing evolutionary advantages in prey detection, predator avoidance, and feeding efficiency.

البنى ذات الصلة

mucus body coating mucous body coating mucus cocoon mucous cocoon Mullerian duct ductus paramesonephricus multi cell part structure cell part cluster multicellular anatomical structure multicellular structure multilaminar epithelium laminated epithelium multi-tissue structure multi-tissue structures multi-unit eye

إخلاء المسؤولية الطبية

هذا المحتوى لأغراض تعليمية وإعلامية فقط. لا يُقصد به أن يكون بديلاً عن المشورة الطبية المهنية أو التشخيص أو العلاج. استشر دائماً طبيبك أو مزود الرعاية الصحية المؤهل الآخر بشأن أي أسئلة قد تكون لديك بخصوص حالة طبية. لا تتجاهل أبداً المشورة الطبية المهنية أو تتأخر في طلبها بسبب شيء قرأته على هذا الموقع.

Educational Disclaimer

This content is for educational and informational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider for medical decisions.

Data sources: Terminologia Anatomica, Foundational Model of Anatomy, Wikidata.