Comprehensive Anatomical Terminology and Regional Anatomy
Anatomical Regions of the Cephalon and Cervicis
The human body is divided into specific regions categorized by their anatomical position. The Cephalon or head is the most superior region and encompasses several specialized areas including the Cranium or skull (cranial) and the Facies or face (facial). Within the facial region, the Frons or forehead is referred to as the frontal area. The Oculus represents the eye and is described by the terms orbital or ocular. The Auris or ear is synonymous with the otic region, while the Bucca or cheek is known as the buccal region. The Nasus or nose is termed nasal. For the mouth and chin, the Oris refers to the oral area, and the Mentis signifies the chin or the mental region. On the posterior aspect, the head remains referred to as the Cephalic region.
Transitioning from the head to the body is the Cervicis or neck, which is consistently termed the cervical region in both anterior and posterior views. This serves as the critical junction connecting the cephalic regions to the trunk and upper limbs.
Anterior Trunk and Pelvic Regions
The anterior portion of the trunk is divided into several sections that house vital organs. The Thorcis (alternatively identified as the thorax or chest) is the thoracic region. Lateral to the center of the chest is the Mamma or breast, known as the mammary region. Inferior to the thoracic cavity is the Abdomen, or the abdominal region. At the center of the abdomen is the Umbilicus, providing the landmark for the navel or umbilical region. Moving further inferiorly, the Pelvis defines the pelvic region, which includes the Inguen or groin (inguinal) and the central Pubis or pubic region. The Hip is also identified as the coxal region.
Upper Limb Anatomy
The upper limbs are detailed through a series of specific terms identifying each segment from the shoulder to the fingertips. The Axilla or armpit is the axillary region. This moves into the Brachium or arm, which is the brachial region. On the anterior side of the elbow, the Antecubitis is the antecubital region. Continuing down the limb, the Antebrachium or forearm is the antebrachial region. The Carpus or wrist marks the carpal region.
The hand, or Manus (manual), contains several specialized landmarks. The Palma or palm is the palmar region. The digits of the hand are the Phalanges, which are referred to as the digital or phalangeal regions. Specifically, the thumb is identified as the Pollex. In a posterior view, the shoulder is the acromial region, and the posterior surface of the elbow is the Olecranon or olecranal region.
Lower Limb Anatomy and Pedal Regions
The lower limbs follow a similar hierarchical structure. The Femur or thigh is the femoral region in both anterior and posterior perspectives. On the anterior side, the Patella or kneecap is the patellar region. Below this is the Crus or leg, referred to as the crural region. The junction between the leg and foot is the Tarsus or ankle, known as the tarsal region.
The foot is the Pes or pedal region. This includes the digits or Phalanges, which are the toes (digital or phalangeal). The great toe is specifically called the Hallux. On the posterior limb, the back of the knee is the Popliteus or popliteal region, while the calf or Sura is the sural region. The heel of the foot is the Calcaneus (labeled calacaneal), and the sole of the foot is the Planta or plantar region.
Posterior Trunk and Back Regions
The posterior view of the trunk, or the Dorsum (back), is categorized by several distinct regions. The upper back and shoulder area is the acromial region. The central and lower back is broadly the dorsal area, which includes the Lumbus or loin, known as the lumbar region. Inferior to the lumbar region is the Sacrum, or sacral region. The buttock area is the Gluteus or gluteal region, completing the posterior organization of the trunk and its transition to the lower limbs.