Main anatomical structures
The study of the human body (hómo) begins with its foundation — the skeleton (skéleton). Key regions are the trunk (trúncus), head (cáput), and neck (designated by the terms cérvix or cóllum). It is important to remember that the terms cáput and cóllum apply not only to body parts as a whole, but also to elements of bones or internal organs (e.g., the neck and head of the femur).
The posterior surface of the trunk, or back, is designated by the term dórsum. The skull (cránium) with its cerebral (cerebrális) structures is distinguished separately. The chest is termed thórax, and the thoracic region is thorácicus. Inside the thoracic cavity lies the mediastinum (mediastínum), and the ribs form the intercostal spaces (spátia intercostália). The basis of the trunk is formed by the vertebral column (colúmna vertebrális), consisting of individual vertebrae (vértebra).
The Latin language covers all body systems. For example, in the digestive system (digéstio) the jejunum (jejunum) is distinguished, and in the nervous system — structures such as the insula (insula). The physician studying these systems is called an iater in Greek.
Bones and their elements
In Latin, a bone is os, and bones in the plural are óssa. Each bone has a body (córpus) and various parts (pars). On a cross-section of a bone, spongy bone tissue — substántia spongiósa — can be seen.
Many relief formations are found on the surfaces of bones. Prominent parts are described by the following terms:
- eminéntia — eminence;
- crísta — crest;
- árcus — arch;
- ála — wing.
Depressions and passages are designated as fossae (e.g., the infratemporal fossa — fossa infratemporalis), as well as apertures and openings (Latin uses the terms forámen and óstium). Bones connect to each other (junctúra), forming a complex system that is additionally reinforced by ligaments (ligaméntum).
Terms of location and direction
To precisely indicate where an anatomical structure is located and what direction it faces, Latin adjectives are used.
Axes and planes:
- frontális — frontal;
- horizontális — horizontal.
Relation to the center and trunk:
- proximális — proximal (closest to the trunk);
- distális — distal (farther from the center);
- mediánus — median;
- médius — middle;
- intermédius — intermediate;
- mediális — medial (closer to the midline);
- laterális — lateral (to the side, farther from the midline).
Pairs of antonyms: For convenience, spatial terms are learned in pairs:
- supérior (superior) — inférior (inferior). Example: paries inferior (inferior wall).
- antérior (anterior) — postérior (posterior).
- ventrális (ventral, anterior) — dorsális (dorsal).
- déxter (right) — siníster (left).
- superficiális (superficial) — profúndus (deep).
- intérnus (internal) — extérnus (external).
To indicate size, the words májor (greater) and mínor (lesser) are used. For example, canalis palatinus major is translated as the greater palatine canal.
Briefly: answers to topical questions
Which Latin terms are used to denote the axes and planes of the human body?
The following Latin terms are used to denote the axes and planes of the human body:
Axes:
- Sagittal axis (sagittalis) — directed from front to back.
- Frontal axis (frontalis) — directed from right to left.
- Vertical axis (verticalis) — directed from top to bottom.
Planes:
- Sagittal plane (planum sagittale) — divides the body into right and left parts.
- Median plane (planum medianum) — a special case of the sagittal plane.
- Frontal plane (planum frontale) — divides into anterior and posterior parts.
- Horizontal plane (planum horizontale) — divides into superior and inferior parts.
Which Latin terms designate depressions, grooves, and fissures in bones?
In anatomical terminology, the following Latin terms are used to designate depressions, grooves, and fissures:
- Fossa (fossa) — for example, fossa infratemporalis (infratemporal fossa) or fossa olecrani (olecranon fossa).
- Fossula (fossula) — a small depression.
- Sulcus (sulcus) — for example, sulcus venae subclaviae (groove for the subclavian vein).
- Fissure (fissura or hiatus) — for example, fissura petrooccipitalis (petro-occipital fissure) and hiatus sacralis (sacral hiatus).
- Notch (incisura) — for example, the sciatic notch.
What is the difference between the terms medialis and medianus?
The difference between these terms lies in their relation to the midline of the body:
| Term | Translation | Significance |
|---|---|---|
| Medianus | Median | Denotes a structure located strictly along the midline (e.g., planum medianum). |
| Medialis | Medial | Denotes a location closer to the midline compared to other structures. |
What Latin terms are used to describe the bony structures of the thorax?
The following Latin terms are used to describe the bony structures of the thorax:
- Skeleton of the thorax (skeleton thoracis).
- Sternum (sternum).
- Ribs (costae).
- Thoracic vertebrae (vertebrae thoracicae).
- Inferior thoracic aperture (apertura thoracis inferior).
- Intercostal spaces (spatia intercostalia).
How are the plural form and the genitive case formed from the word os (bone)?
In Latin, the word bone (os) is an exception, belongs to the neuter gender of the third declension, and forms its grammatical variants as follows:
- Genitive singular (Genitivus) — ossis.
- Nominative plural (Nominativus pluralis) — ossa (bones).
The dictionary form of this word is written as os, ossis n.
What are the main parts distinguished in the macroscopic structure of a bone in Latin?
The following main parts are distinguished in the macroscopic structure of a long tubular bone:
- Shaft (diaphysis) — the central part of the bone.
- Epiphyses (epiphysis proximalis and epiphysis distalis) — the proximal and distal ends.
- Growth plate (metaphysis) — the region between the diaphysis and epiphysis.
- Bone processes (apophysis) — serve for the attachment of muscles and ligaments.
On a cross-section of a bone, compact bone (substantia compacta), spongy bone (substantia spongiosa), and the medullary cavity (cavitas medullaris) are also distinguished.
Learn directional terms in antonym pairs: dexter — sinister, superior — inferior, profundus — superficialis. This creates stable logical connections in memory and doubles memorization speed.
Class and exam questions
What is the difference between the terms foramen and ostium?
Both terms translate as "opening". However, foramen is more commonly used for bone apertures, while ostium refers to openings of internal organs or canal orifices.
How to distinguish cervix from collum?
Both words mean "neck". Traditionally, cervix is more frequently used to describe internal organs, while collum is used for bony elements, although there are exceptions in terminology.
What do the terms proximalis and distalis mean?
These terms are mainly used to describe limbs. Proximalis denotes a structure located closer to the trunk, while distalis denotes one located farther from it.
What else to study on this topic
- Structural features of the skull (cranium) and brain structures (cerebralis)
- Detailed study of the thorax (thorax) and spine (columna vertebralis)
- Types of bone joints (junctura) and ligamentous apparatus (ligamentum)
- Specifics of digestive tract terms (digestio, jejunum)
- Declension of Latin adjectives major and minor
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