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Afferent, Propriospinal and Descending Control of Lumbar Motoneurones in the Neonatal Rat
The motor unit is considered as the unitary output element of the motor system. The motoneurone which comprises the neural part of the motor unit,...
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Optical Recording and Lesioning of Spinal Neurones During Rhythmic Activity in the Chick Embryo Spinal Cord
The development of in vitro preparations of the spinal cord has catalysed our understanding of locomotor network organisation in simple vertebrates...
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Kinematic analysis of wing and leg movements for type I motility in E9 chick embryos
Based on studies using direct observation methods, type I motility, the first motility pattern to emerge in chick embryos, is characterized as...
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Kinetics and differentiation of somite cells forming the vertebral column: studies on human and chick embryos
We have studied the kinetics of somite cells with an antibody against proliferating cell nuclear antigen (PCNA/cyclin) in human and chick embryos,...
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GABA-receptor activation in the globus pallidus and entopeduncular nucleus: opposite effects on reaction time performance in the cat
The possible role of GABAergic mechanisms in the control of the basal ganglia output structures, the globus pallidus (GP) and the entopeduncular...
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Relations among motor unit types, generated forces and muscle length in single motor units of anaesthetized cat peroneus longus muscle
The active length-tension curves of identified single motor units (MUs) belonging to peroneus longus muscle (PL) of anaesthetized adult cats were...
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Embryology of the Endothelial Network: Is There an Hemangioblastic Anlage ?
Endothelial cells (EC) play a leading role in the modelling of blood vessels. In the embryo they form the blueprint of the vascular tree, the...
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Specification and segmentation of the paraxial mesoderm
Somite formation in the mouse embryo begins with the recruitment of mesenchymal cells into the paraxial mesoderm. Cells destined for the paraxial...
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Exitatory Amino Acid Receptors in the In Vitro Mammalian Spinal Cord
The excitatory synapse between group la afferents and α-motoneurons is one of the most frequently used models for central synaptic transmission in...
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Axis development in avian embryos: the ability of Hensen's node to self-differentiate, as analyzed with heterochronic grafting experiments
A series of experiments consisting of transplantation of Hensen's nodes has been conducted to examine axis development in avian embryos. In the first...
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Carbamylcholine-induced morphological changes and spatial dynamics of [Ca2+]c in Harderian glands of guinea pigs: calcium-dependent lipid secretion and contraction of myoepithelial cells
To determine whether lipid-secreting cells have cytosolic Ca 2+ concentration ([Ca 2+ ] c )-related secretory mechanisms, morphological changes and...
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Electromyographic evidence of two functional subdivisions in the rhesus monkey's flexor digitorum profundus
The main belly of the macaque's flexor digitorum profundus (FDP) is divided by a dissectible plane into radial and ulnar regions. The present report...
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The distal hindlimb musculature of the cat: interanimal variability of locomotor activity and cutaneous reflexes
During stereotyped behaviors such as locomotion, patterns of muscle recruitment are usually quite consistent from animal to animal, even in the face...
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Gait-related motor patterns and hindlimb kinetics for the cat trot and gallop
To assess speed- and gait-related changes in semitendinosus (ST) activity, EMG was recorded from three cats during treadmill locomotion. Selected...
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Adrenocorticotropic cell distribution in adult and embryonic pituitaries of the little (lit) mutant mouse
Immunofluorescence and colloidal gold immunocytochemistry were used to analyze the regional distribution of adrenocorticotropic (ACTH) cells and...
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X-chromosome inactivation occurs at different times in different tissues of the post-implantation mouse embryo
During mammalian development, one of the two X chromosomes in female embryos is randomly inactivated in the somatic cell in order to achieve gene...
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Mechanistic and Functional Aspects of Oscillatory Calcium Signalling
Mobilization of calcium from intracellular stores and the extracellular medium to yield an increase in cytosolic free Ca2+ ([Ca2+]i) is one of the...
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Genetic counselor as a member of an outreach education team
As part of a program to improve maternal and infant health in New Jersey, the Robert Wood Johnson Foundation has funded seven regional consortia...
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Lectin-binding carbohydrates in sexual differentiation of rat male and female gonads
Development and sexual differentiation of the mammalian gonad involve changes in the type and distribution of different proteins and glycoproteins in...
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Task-related differences in distribution of electromyographic activity within peroneus longus muscle of spontaneously moving cats
In the hindlimb muscle peroneus longus (PerL) of cats, electromyographic activity (EMG) was recorded from anterior and posterior regions during...