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pisiform bone (os pisiforme)

parent article - wrist or carpus

The Pisiform Bone (os pisiforme) The pisiform bone may be known by its small size, and by its presenting a single articular facet. It is situated on a plane anterior to the other carpal bones and is spheroidal in form. Its dorsal surface presents a smooth, oval facet, for articulation with the triangular: this facet approaches the superior, but not the inferior border of the bone. The volar surface is rounded and rough, and gives attachment to the transverse carpal ligament, and to the Flexor carpi ulnaris and Abductor digiti quinti. The lateral and medial surfaces are also rough, the former being concave, the latter usually convex. 10

Articulation.—The pisiform articulates with one bone, the triangular.

Volar: Pertaining to both the palm and sole. It comes from word "vola" which the ancient Romans used for "the palm of the hand and the sole of the foot."

cf palmar (palm side of hand)and planar (sole of foot)

The Triangular Bone (os triquetrum; cuneiform bone)

By comparison, the term "palm" applies to only the palm (the grasping side) of the hand. The Romans actually used the word "palma" for the outstretched palm of the hand.

topics in anatomy

SYSTEMIC ANATOMY INTEGUMENTARY SYSTEM integumentary system SKELETAL SYSTEM full skeleton skull vertebral column ribcage shoulder & arm hand & wrist pelvis leg & ankle foot MUSCULAR SYSTEM full body muscle histology head & neck thorax shoulder & upper arm giceps brachii forearm & hand abdomen pelvis, thigh & knee leg & foot THE NERVOUS SYSTEM nervous system brain spinal cord autonomic nervous system eye ear nose ENDOCRINE SYSTEM endocrine sytem hypothalamus & pituitary thyroid & parathyroids adrenal glands pancreas ovaries testes CIRCULATORY SYSTEM cardiovascular system lymphatic system RESPIRATORY SYSTEM respiratory system mouth, nose & throat lungs

DIGESTIVE SYSTEM digestive system alimentary canal

accessory organs

mouth & throat esophagus & stomach liver, gallbladder

pancreas & duodenum

small intestine large intestine URINARY SYSTEM urinary system kidneys REPRODUCTIVE SYSTEM male reproductive systerm female reproductive system

REGIONAL ANATOMY THE HEAD & NECK the head & neck the brain the eye the ear THE THORAX the thorax the lungs the hearg THE ABDOMEN the abdomen stomach liver & gallbladder spleen small intestine large intestine kidney THE PELVIS pelvis THE UPPER LIMB arm & elbow forearm & hand hand THE LOWER LIMB thigh & knee leg & foot foot

More Regional Anatomy

HEAD, NECK AND BRAIN skull skull bones head and neck nose pharynx larynx cranial cavity eye ear brain radiographs VERTEBRAL COLUMN AND SPINAL CORD vertebrae sacrum and coccyx vertebral column and spinal cord muscles radiographs UPPER LIMB bones shoulder radiographsaxilla upper arm elbow radiographsaxillaforearm hand radiographs THORAX bones thoracic walls heart arteriograms mediastinum and lungs inlet, diaphragm and vessels joints radiographsaxilla ABDOMEN AND PELVIS anterior abdominal wall upper abdominal viscera liver spleen appendix smal intestine kidneys and suprarenal glands posterior abdominal and pelvic wals male inguinal region female inguinal region male pelvis female pelvis male perineum female perineum radiographs LOWER LIMB bones gluteal region thigh hip joint radiographsknee radiograph leg ankle and foot radiographs APPENDIX skeleton arteries veins nerves lymphatic system muscles skull foramina

CYTOLOGY introduction cell structure epithelial tissues connective tissues blood and haemopoiesis EMBRYOLOGY introduction sixual reproduction growth and differentiation the female gamete the male gamete fertilization heredity and human genetics early development fo the human embryoLOGYdifferentiation of the embryonic area formation of the embryoLOGYnutrition of the embryoLOGYimplantation and placentation skeletal development branchial apparatus development of locomotor structures nerovous system and special sense organs vascular system digestive and respriatory system urogenital system prenatal growth OSTEOLOGY human skeletal morphology skeletal connective tissues structure of cartilage bone as a tissue histogenesis of bone verebral characteristics sternum and ribs the skull exterior of the skull interior ofr th cranium individual cranial bones cranial growth and variation appendicular skeleton skeleton of upper limb skeleton of lower limb ARTHROLOGY fibrous and cartlaginous joints structure of synovial joints movements and mechanisms of joints temporomandibular joint vertebral andthoracic articulations joints of the upper limb joints of the lower limb MYOLOGY introduction skeletal muscle cardiac muscle non-striated muscle form and actions fo skeletal muscle fasciae and muscles of the hea anterolateral nuchal muscles and fasciae fasciae and muscles of the trunk fasciae and muslces of th upper limb fasciae and muscles of the lower limb ANGIOLOGy introduction and vascular structuresvascular patterns' thoracic cavity and pericardium the heart aortic arch carotid arterial system subclavian arterial system thoracic aorta abdomanal aorta ilia arterial system cranial venous system veins of the upper limb thoracic veins veins of the lower limb abdominal veins reticulo-endothelial and lymphatic system the spleen the thymus regional lymph nodes and vessels NEUROLOGY general principles neuroanatomical techniques neurocytology nervous system – divisions spinal medulla or cord myelencephalon – medulla oblongata metencephalon-pons cerebellum mesencephalon-midbrain reticular formation diencaphalon dorsal thalamus epithalamus ventral thalamus hypothalamus metathalamus crebral surfaces limbic lobe crebral cortex-structure cerebral cortex-areas basal nuclei meninges-cranial and spinal peripheral nervous system individual cranial nerves mophology of cranial nerves spinal nerves dorsal spinal rami cervical ventral spinal rami thoracic ventral spinal rami lumbar ventral spinal rami sacral and coccygeal ventral spinal rami autonomic nervous system parasympathetic nervous system sympathetic nervous system major autonomic plexuses gustatory apparatus olfactory apparatus visual apparatus auditory and vestiular apparatus integument-skin SPLANCHNOLOGY respiratory system larynx trachea and bronchi pleurae the mediastinum lungs alimentary system the teeth tongue, pharynx and oesophagus the abdomen peritoneum gastro-intestinal tract pancreas liver urogenital system the urinary tract reproductive organs – male reproductive organs – female endocrine glands