Classes with a single subclass

'Anatomical morphology value'
'Anatomical tree'
'Articular cartilage of superior articular process of vertebra'
'Bony part of distal metaphysis of second metatarsal bone'
'Bony part of proximal metaphysis of first metatarsal bone'
'Central part of body of sacral vertebra'
'Costal element of sacral vertebra'
'Cytoplasmic inclusion'
'Deep lymphatic vessel of head'
'Dense-core granulated cell'
'Distal part of diaphysis'
'Epithelioid cell'
'Fetal artery'
'Gray matter of hypothalamus'
'Horizontal anatomical plane'
'Inner kinetochore of condensed chromosome'
'Intraorgan venous tree'
'L1 segment of substantia gelatinosa'
'Lamina of sacral vertebra'
'Lumen of trunk of median sacral artery'
'Lymphatic capillary'
'Membranous layer of superficial fascia'
'Middle muscle layer of organ'
'Naso-pharyngeal lymphoid tissue'
'Non-physical anatomical entity'
'Outer kinetochore of condensed chromosome'
'Pars distalis of adenohypophysis'
'Pedicle of sacral segment'
'Physical attribute relationship'
'Posterolateral part of body of sacral segment'
'Primary lysosome'
'Proximal part of diaphysis'
'Ribonucleoprotein complex'
'Ribosomal ribonucleic acid'
'Rootlet of cranial nerve'
'Segment of gray matter of medulla oblongata'
'Segment of neuraxis'
'Set of microtubules'
'Smooth stratified columnar epithelium'
'Subdivision of gigantocellular nucleus'
'Subfascial bursa'
'Surface of segment of pons'
'Synaptic connectivity'
'Tissue cluster'
'Transitional epithelium'
'Transverse process of sacral vertebra'
'Variant cervical spinal ganglion'
'Variant thoracic spinal ganglion'
'Vertebral arch of sacral segment'
'Zone of cell body'
'Zone of coracobrachialis'
'Zone of external oblique'
'Zone of internal oblique'
'Zone of prevertebral layer of cervical fascia'
'Zone of rectus abdominis'
'Zone of transversus abdominis'
'Zone of trapezius'
'acceleration unit'
'angular acceleration unit'
'angular velocity unit'
'area density unit'
'cell concentration unit'
'colony forming unit per volume'
'electric charge'
'electric field strength unit'
'electrical conduction unit'
'exposure unit'
'force unit'
'frequency unit'
'heat conduction unit'
'linear density unit'
'luminance unit'
'luminous flux unit'
'luminous intensity unit'
'magnetic flux density'
'momentum unit'
'plaque forming unit per volume'
'power unit'
'pressure unit'
'radiance unit'
'radiant intensity unit'
'rotational frequency unit'
'solid angle unit'
'speed/velocity unit'
'temperature unit'
'unit of normality'
'volumetric flow rate unit'
Bone
Cell
DeltaSubunit
Euchromatin
Fibrocyte
Kinetochore
MultiPhotonMicroscope
Myofilament
Organ
PotassiumChannel
Tissue
WaveformInjection
fraction