Basilar 
invagination occurs when the top of the C2 vertebrae migrates upward.  It can cause the opening in the skull where the spinal cord
Kaynak: Basilar invaginationDiagnosis: File:
Invagination 001 CT cor. png | Small intestinal 
invagination on computed tomography  File:Intussusception on ultrasound.
Kaynak: Intussusception (medical disorder)A T-tubule (or transverse tubule) is a deep 
invagination  of the sarcolemma , which is the plasma membrane , only found in skeletal  and
Kaynak: T-tubuleOtic notches are 
invagination in the posterior margin of the skull roof , one behind each orbit .  Such notches are found in
Kaynak: Otic notchMesosomes are folded 
invagination s in the plasma membrane  of bacteria  that are produced by the chemical fixation  techniques used to
Kaynak: MesosomeCrypts are anatomical structures that are narrow but deep 
invagination s into a larger structure. One common type of anatomical crypt is the
Kaynak: Crypt (anatomy)The pilosebaceous unit is an epidermal 
invagination found on most surfaces of the human body.  It is composed of a hair follicle, sebaceous
Kaynak: Pilosebaceous unit(50–100 nanometer ) 
invagination s of the plasma membrane  in many vertebrate cell  types, especially in endothelial  cells and adipocyte s.
Kaynak: CaveolaeMacropinocytosis , which usually occurs from highly ruffled regions of the plasma membrane, is the 
invagination of the cell membrane to
Kaynak: Endocytosisforming an 
invagination, and then suspended within small vesicles  (pinocytotic vesicles) that subsequently fuse with lysosome s to
Kaynak: PinocytosisUnlike the vertebrate  camera eye, the cephalopods' form as 
invagination s of the body surface (rather than outgrowths of the brain), and
Kaynak: Cephalopod eyeRaphidophytes possess a pair of flagella , organised such that both originate from the same 
invagination  (or gullet).  One flagellum
Kaynak: RaphidophyteThis 
invagination of ectodermal tissues is the progenitor to the later ameloblasts  and enamel  while the ectomesenchyme  is responsible
Kaynak: Dental lamina